Editing Virus

{{species infobox
|image=[[File:DrMarioWorld - Viruses.png|300px]]<br>A group of viruses from ''[[Dr. Mario World]]''
|first_appearance=''[[Dr. Mario (game)|Dr. Mario]]'' ([[List of games by date#1990|1990]])
|latest_appearance=''[[Mario Kart Tour]]'' (2022) (Doctor Tour)
|variants=[[Dizziness Virus]]<br>[[Floatie virus|Floatie Virus]]<br>[[Wheel Virus]]
}}
{{quote|I wanted to enjoy a nice day with my pal [[Toad (species)|Toad]], but it turns out he's feeling under the weather. Huh? Do you think it's my fault? Probably not, but I still feel bad about it!|Red|''[[Dr. Mario World]]'' official social media accounts}}
A '''virus''' is a germ-based enemy found in the ''[[Dr. Mario (series)|Dr. Mario]]'' series. Viruses most often appear in three colors &ndash; '''Red''', '''Blue''', and '''Yellow''' &ndash; however, in later games in the series including ''[[Dr. Luigi]]'' and ''[[Dr. Mario World]]'', a larger variety of colors and types are present. To defeat a virus, usually [[Dr. Mario]] must line up three [[Capsule]] pieces of the same color next to the virus of that color. The virus, along with the capsules, will then disappear. In most ''Dr. Mario'' games, after clearing one jar of viruses, Dr. Mario will move to the next one, with each jar containing increasingly more viruses.

==History==
===''Dr. Mario'' series===
====''Dr. Mario''====
[[File:Virus movements.gif|thumb|right|60px|The viruses' general animations in ''Dr. Mario'']]
[[File:Virus.png|frame|left|Earlier artwork of the viruses used for American releases of ''[[Dr. Mario (game)|Dr. Mario]]'']]
{{multiple image
|align=left
|direction=horizontal
|footer=Black (red), gray (blue), and white (yellow) viruses from ''Dr. Mario'' (Game Boy)
|width=20
|image1=DMGBBlackVirusSprite.png
|alt1=''Black (Red) Virus''
|image2=DMGBGrayVirusSprite.png
|alt2=''Gray (Blue) Virus''
|image3=DMGBWhiteVirusSprite.png
|alt3=''White (Yellow) Virus''
}}
Viruses first appeared in the [[Nintendo Entertainment System|NES]] and [[Game Boy]] game ''[[Dr. Mario (game)|Dr. Mario]]'', where they are small germs that Dr. Mario must eliminate. To do this, he uses vitamin capsules, which can come in combinations of their colors (red, blue, and yellow), four of these capsule pieces must be stacked on top of a virus of the same color to eliminate it. As the difficulty increases, the number of viruses will also increase.

In the [[Game Boy]] version due to the system being incapable of displaying bright colors, viruses appear in black, white, and gray. The black virus resembles the red virus, the gray virus resembles the blue virus and the white virus resembles the yellow virus. Because the simple monochrome display of the Game Boy is only able to show a few shades of gray, the black and gray viruses lack the black sclera that the red and blue viruses had, and hence look marginally different. In the high-level ending, the viruses are seen on a tree before being beamed up by a UFO.

They are found in the remakes ''[[Tetris & Dr. Mario]]'' and ''[[Dr. Mario & Puzzle League]]'' for the [[Super Nintendo Entertainment System]] and [[Game Boy Advance]] respectively.
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====''Dr. Mario 64''====
{{multiple image
|align = right
|direction =horizontal
|footer = Viruses from ''[[Dr. Mario 64]]''
|width = 32
| image1 = NPCBlueVirusSprite.png
| alt1 = ''A blue virus''
| image2 = NPCRedVirusSprite.png
| alt2 = ''A red Virus''
| image3 = NPCYellowVirusSprite.png
| alt3 = ''A yellow virus''
}}
Viruses appear again in ''[[Dr. Mario 64]]'', and they play the same role as before. The way to beat them stays the same, too. ''Dr. Mario 64'' adds a Flash mode, where one virus of each color is flashing, and two players compete to clear the flashing viruses with numerous other viruses in the way.

====''Dr. Mario Online Rx''====
[[File:Viruses Dr Mario Online Rx.png|thumb|left|100px|Viruses from the title screen of ''Dr. Mario Online Rx'']]

Viruses also appear in the [[WiiWare]] game ''[[Dr. Mario Online Rx]]'', where they act like they do in ''Dr. Mario''. They are also seen fighting [[Mii]]s in the Virus Buster game.
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====''Dr. Luigi''====
{{multiple image
|align=right
|direction=horizontal
|image1=Virus Artwork - Dr. Luigi.png
|width1=115
|caption1=The cyan virus, Dizzy
|image2=Red_Virus_Artwork_-_Dr._Luigi.png
|width2=100
|caption2=The magenta virus, Confused
|image3=Yellow Virus Artwork - Dr. Luigi.png
|width3=117
|caption3=The alternative yellow virus, Drowsy
}}
Three new viruses with two new virus colors, cyan and magenta, appear in the [[Wii U]] game, ''[[Dr. Luigi]]'', exclusive to the [[Nintendo eShop#Wii U|Nintendo eShop]]. The classic blue, red, and yellow viruses appear in the "Retro Remedy" mode by default, while new viruses &ndash; a cyan virus ('''Dizzy'''), a magenta virus ('''Confused'''), and an alternative yellow virus ('''Drowsy''') &ndash; appear in the new Operation L mode by default. The colors of the viruses in this game are based off {{wp|CMYK color model|CMYK printing}} colors.

====''Dr. Mario: Miracle Cure''====
[[File:Dr. Mario Miracle Cure.png|thumb|200px|left|Basic gameplay of Dr. Mario mode in ''Dr. Mario: Miracle Cure'']]
The standard three viruses return in ''[[Dr. Mario: Miracle Cure]]'', in the same role as past games. Even though Dr. Luigi and the Operation L gameplay return in this game, the new viruses seen in ''Dr. Luigi'' do not.

====''Dr. Mario World''====
The standard three viruses returned in ''[[Dr. Mario World]]'', along with four new green, purple, light-blue, and pink viruses. The three classic viruses also received a new design reminiscent of their in-game appearance from ''Dr. Mario'', and were prominently featured in the promotional video series for the game, ''[[Virus Vid]]''. Although there were seven types of viruses, they did not appear in all stages. In the regular stages, three out of red, blue, yellow, green and light-blue would appear throughout that World. Pink viruses exclusively appeared in challenge stages and special stages. Purple viruses were absent in stages and only appeared on the world map.

Viruses could come with new gimmicks in ''Dr. Mario World'', such as being frozen in [[ice]], encased in [[bubble]]s, protected by cages that could be unlocked with [[lock block]]s, or hidden by [[Cloud (object)|cloud]]s and [[dust virus|dust]]. A variant called the [[floatie virus]] could teleport away from a matched pill to another location on the grid. Unlike the other ''Dr. Mario'' games where a match of four in a row or column involving capsules are required to eliminate them, the viruses in this game required a capsule match of three in a row or column to eliminate (such as two viruses and one capsule piece of matching color).

===Nintendo Comics System===
The viruses appear as the main antagonists in [[Nintendo Comics System]]'s adaptation of ''Dr. Mario'' entitled "[[The Doctor Is In... Over His Head]]". This appearance names the red virus '''Fever''', the blue virus '''Chill''', and the yellow virus '''Weird'''.

In the same comic, the viruses are given special powers: Chill can manipulate the cold, Fever can control heat, and Weird can forcibly morph others into different shapes and creatures.

===''Club Nintendo''===
Two viruses can briefly be seen inside [[Bowser]]'s stomach in the ''[[Club Nintendo (magazine)|Club Nintendo]]'' comic "[[Süße Weihnachten]]". They symbolize his sickness after having eaten too much.

===''Super Smash Bros.'' series===
====''Super Smash Bros. Melee''====
The viruses appear in ''[[Super Smash Bros. Melee]]'' as a [[Trophy (Super Smash Bros. series)|trophy]], which can be obtained when it appears at random in one of the game's single-player modes.

====''Super Smash Bros. Brawl''====
In ''[[Super Smash Bros. Brawl]]'', each of the blue, red and yellow viruses are featured as separate [[Sticker (Super Smash Bros. Brawl)|stickers]]. They can be used in [[Super Smash Bros. Brawl#The Subspace Emissary|The Subspace Emissary]] by any fighter. The blue virus sticker boosts electric attacks by 5 points, the red virus sticker boosts fire-based attacks by 20 points and the yellow sticker increases the amount of damage recovered after eating [[food]] by 4 points.

====''Super Smash Bros. for Wii U''====
The viruses are featured as a trophy in ''[[Super Smash Bros. for Wii U]]''. The trophy can be collected once it appears at random in one of the single-player modes, such as Vs. mode and others.

====''Super Smash Bros. Ultimate''====
The viruses appear in ''[[Super Smash Bros. Ultimate]]'' as an Advanced-class support [[Spirit (Super Smash Bros. Ultimate)|spirit]] that occupies one support slot. Upon use, the spirit reduces the damage taken from poison-based attacks. In [[Super Smash Bros. Ultimate#Adventure|World of Light]], the spirit is encountered on the Light Realm map near Riki's Dojo. The spirit's puppet fighters are three [[Kirby]]s, each colored after one of the viruses, and the battle takes place on the Battlefield version of the [[Mario Bros. (stage)|Mario Bros.]] stage.

===''WarioWare'' series===
{{multiple image
|align = left
|direction =horizontal
|footer = Viruses in [[Dr. Wario]], featuring a different look
|width = 24
| image1 = WWIMMBlueVirusSprite.png
| alt1 = Blue Virus
| image2 = WWIMMRedVirusSprite.png
| alt2 = Red Virus
| image3 = WWIMMYellowVirusSprite.png
| alt3 = Yellow Virus
}}
[[File:Weird Science.png|thumb|[[Weird Science]]]]
In ''[[WarioWare, Inc.: Mega Microgame$!]]'', one of [[9-Volt]]'s [[microgame]]s called [[Dr. Mario (WarioWare, Inc.: Mega Microgame$!)|Dr. Mario]] is based on the game ''Dr. Mario'', and the player must defeat the viruses using capsules, just like in the game. There is also a minigame in the same game called [[Dr. Wario]], which is a Wario version of ''Dr. Mario'', where the viruses look different. In ''[[WarioWare: Twisted!]]'' in the microgame [[Weird Science]], a blue virus makes an appearance. ''[[WarioWare Gold]]'' features another Dr. Mario microgame [[Dr. Mario (WarioWare Gold)|under the same name]], where the player must tilt the game system to defeat a row of three Viruses.
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===''Mario & Luigi'' series===
====''Mario & Luigi: Superstar Saga'' / ''Mario & Luigi: Superstar Saga + Bowser's Minions''====
{{multiframe
|[[File:Red Virus SSS.png]] [[File:Blue Virus SSS.png]] [[File:Yellow Virus SSS.png]]<br>[[File:MLSSBMVirusRed.png]] [[File:MLSSBMVirusBlue.png]] [[File:MLSSBMVirusYellow.png]]
|Sprites of the viruses between games
|size=150
|align=right
}}
Viruses appear as enemies at [[Woohoo Hooniversity]] in ''[[Mario & Luigi: Superstar Saga]]'' and its [[Nintendo 3DS]] remake, ''[[Mario & Luigi: Superstar Saga + Bowser's Minions]]''. They appear in all three colors and attack in groups - each color virus has different stats (e.g. Red Viruses have the highest [[Power|POW]] and lowest [[Defense|DEF]]).

Viruses attack by charging at Mario or Luigi and chewing on their heads, which may [[Poison (status effect)|poison]] them and can be countered by using the [[hammer]]. When hit by [[Mario]] or [[Luigi]], they will change into a different color: a Red Virus that is hit will become a Blue Virus, a Blue Virus will become a Yellow Virus, and a Yellow Virus will become a Red Virus. If all Viruses in a battle have a matching color, they will be instantly defeated, as a callback to how they are beaten in ''Dr. Mario''. In ''Mario & Luigi: Superstar Saga + Bowser's Minions'', a small portion of the [[Fever]] theme plays when this occurs. 

The Red Virus takes critical damage from [[Thunderhand]] and [[Thunder Bros.]], while the Blue Virus takes critical damage from [[Firebrand]] and [[Fire Bros. (move)|Fire Bros.]], and the Yellow Virus is healed if hit with either element. If an Advanced [[Swing Bros.]] attack is used against a Yellow Virus, or it is defeated with the [[Game Boy Horror SP]] equipped, it will drop a [[Steady Badge]].

====''Mario & Luigi: Bowser's Inside Story'' / ''Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey''====
{{multiframe
|[[File:M&LBISBlueVirusSprite.png]] [[File:MLBISBJJBlueVirus.png]]
|size=120
|Sprite of the Blue Virus between games
|align=right
}}
The blue virus makes a cameo in ''[[Mario & Luigi: Bowser's Inside Story]]'' and its [[Nintendo 3DS]] remake, ''[[Mario & Luigi: Bowser's Inside Story + Bowser Jr.'s Journey]]''. After knocking out all the body segments of a [[Toothy]], the Toothy attacks by spitting out a blue virus holding a small spear to attack the player.

In the [[Toadley Clinic]]'s lobby, there is a {{wp|No symbol|prohibition sign}} on the wall featuring a blue virus.

====''Mario & Luigi: Dream Team''====
[[File:MLDT Virus.png|frame|right]]
Viruses appear in ''[[Mario & Luigi: Dream Team]]'' as enemies during the [[Ultibed]] part hunt. In the field, viruses chase Mario and Luigi upon sight. Viruses also change color whenever they are damaged (with the exception of counter-attacks); much like how they did in ''Mario & Luigi: Superstar Saga''. The pattern they go in is from blue to yellow to red and back to blue again, repeating itself. The player can connect three or more of the same color to make them disappear, defeating the connected viruses instantly, also like in ''Mario & Luigi: Superstar Saga''. If a virus is defeated, the ones behind it will move forward to the front if possible. They always appear in a group of 16, which is the most enemies seen in a battle in the real world. They are also one of the very few enemies who can inflict the [[Tiny (status effect)|Mini]] status on the Bros. which decreases their Attack and Defense and shrinks them.

Viruses may attack by forming two lines, one in the foreground and one in the background, and proceeding to move several steps in any direction each time. This can be dodged by jumping when appropriate. Viruses may also attack by circling the Bros. in a single file line, Mario and Luigi then having to hammer them all into a pile before they attack them after circling several times. If three of the same color land on the pile consecutively, they disappear like they would normally. If they are jumped on, they change color twice and if the hammer is used they will change color once. When combined with Mini and DEF-Down, the damage dealt by a virus to the Bro can easily turn into a one-hit KO (999+ damage) without enough points in Defense; this can essentially [[Game Over|end the game]] very quickly. Red viruses can inflict [[POW-Down]], yellow viruses can inflict [[DEF-Down]], and blue viruses can inflict [[SPD-Down]]

===''Mario Kart'' series===
====''Mario Kart Arcade GP'' series====
In the ''[[Mario Kart Arcade GP]]'' series (including ''[[Mario Kart Arcade GP 2|GP 2]]'' and ''[[Mario Kart Arcade GP DX|GP DX]]''), there are two blue Virus related items: [[Wheel Virus]] and [[Dizziness Virus]]. The first and third titles include both, while the second only has the Dizziness Virus.
<gallery>
Driver Virus.png|[[Dizziness Virus]] (''[[Mario Kart Arcade GP]]'')
MKAGPDX Driver Virus.png|[[Wheel Virus]] (''[[Mario Kart Arcade GP DX]]'')
MKAGPDX Dizziness Virus.png|Dizziness Virus (''Mario Kart Arcade GP DX'')
</gallery>

====''Mario Kart Tour''====
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The red, blue, and yellow viruses from ''Dr. Mario World'' return in ''[[Mario Kart Tour]]'' on a glider that debuts in the [[Doctor Tour]].

===''Nintendo Puzzle Collection''===
[[File:VirusesReadyForAction.png|left|thumb|300px|The Viruses in ''[[Nintendo Puzzle Collection]]'']]
The Viruses reappeared in the ''Dr. Mario'' game (a close remake of ''Dr. Mario 64'') of ''[[Nintendo Puzzle Collection]]''.
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===Other appearances and cameos===
[[File:Scientist.png|thumb|right|The Scientist page from ''[[Super Mario Bros. & Friends: When I Grow Up]]'']]
Viruses appear as enemies in the unlockable minigame Virus Buster (also known as Germ Buster) for ''[[List of Mario references in Nintendo video games#Brain Age 2: More Training in Minutes a Day! (DS)|Brain Age 2: More Training in Minutes a Day!]]'', which was later included in ''[[Dr. Mario Online Rx]]'' and all subsequent titles in the ''Brain Age'' series.

Viruses also make a small cameo in the obscure [[Super Nintendo Entertainment System|Super Famicom]] game ''[[List of Mario references in third-party video games#Motoko-chan no Wonder Kitchen (Super Famicom)|Motoko-chan no Wonder Kitchen]]'', appearing in a cut-scene for mayonnaise 'facts'.<ref>[http://youtu.be/I3tZ5FyWorE?t=28m17s Motoko Chan no Wonder Kitchen gameplay]</ref> They also cameo in [[Nintendo Monopoly]], appearing on one of the Coin Block (Community Chest) cards. Viruses are also referenced in ''[[Super Paper Mario]]'' when a [[Shayde]] says he was killed for an illness caused by multicolored viruses. Of all the virus colors, the blue virus is the one with the most appearances and cameos.

As part of the promotion for the release of ''Dr. Mario World'', three T-shirts modeled after the main three viruses were released on July 19, 2019 as a gift in ''[[nookipedia:Animal Crossing: Pocket Camp|Animal Crossing: Pocket Camp]]''.
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==General information==
===Physical description===
The design of the various viruses has changed somewhat over time. In most of their appearances, viruses are bipedal and wear brown shoes and white gloves. Depending on the media, some viruses are missing certain limbs, and in some appearances, can even have floating extremities. Viruses come in multiple colors, each with a unique set of physical characteristics to set them apart.

The three viruses featured in the original ''Dr. Mario'' for [[Nintendo Entertainment System|NES]] have appeared in far more entries than others and have had the greatest revision in terms of design. Red viruses have yellow eyes, large buck-teeth, an outstretched tongue, round pill-shaped ears, and a pair of horns, with earlier depictions giving them floppier dog-like ears, thinner horns, a simple nose, and a spiked tail. According to the ''[[Tetris & Dr. Mario]]'' instruction manual, the red virus is female, making it the only one until the introduction of the magenta virus Confused in ''[[Dr. Luigi]]''. Blue viruses have yellow eyes, thin stemmed eyebrows, no horns, and a single tooth, with earlier depictions rendering their eyebrows as spiked ears that wrap around the back of the head instead. Yellow viruses have orange eyes, two pairs of horns, a pronounced eyebrow ridge, and a unique snout-like nose with jowls, with earlier depictions typically having the eyes be smaller and uneven in size. 

Viruses introduced in ''Dr. Luigi'' are vastly different in appearance from the others, lacking gloves on their hands and feet entirely. Cyan viruses are spherical and have large white eyes with gold irises, two small bulbous antennae on the top of their head, and a large mouth with four fangs and a long tongue. Magenta viruses have a cube-shaped body with three small horns on the top of their head and slightly mottled skin, large eyes with eyelashes and magenta irises, segmented arms with mitten-like hands, and a large square mouth with no visible teeth or tongue. The alternate yellow virus has a blob-like appearance, large eyes with green irises and droopy eyelids, a single spike protruding from the top of its head, low-hanging fork-shaped arms, and a long mouth featuring a line of teeth on the lower jaw.

Viruses introduced in ''Dr. Mario World'' share many design elements with the original three viruses, however, they all now have a more super-deformed appearance and noticeably lack arms. Green viruses have yellow eyes, two large leaf-like features atop its head, no teeth, and a sad or sick expression. Pink viruses have yellow eyes, a single bulb-like antenna atop its head, and a fixed wide grin with large puffed-out cheeks. Light-blue viruses are most similar in appearance to the original yellow viruses, though they have a lower eyebrow ridge, three horns instead of four, and a wide frown with a single tooth sticking up. Purple viruses have yellow eyes, a wide mouth with a single tooth off to the side on the upper jaw, and a single horn protruding from the front of the head.

In the NES version of ''Dr. Mario'', when the player beats the game with the level and speed set to 20 and high respectively, a cutscene will play showing a UFO flying over a tree with the three viruses, who then enter the UFO, hinting that they might be aliens of some sort.<ref>[http://www.youtube.com/watch?v=tmHJGEcc3yU]</ref> The UFO also appears before the title screen of ''Dr. Luigi''.

===Abilities===
Viruses are contagious, to the point that one of them can multiply to fill an entire glass jar within seconds. According to the Nintendo Comics system, each virus has unique abilities that correspond with their names: red viruses can manipulate heat, blue viruses can manipulate cold, and yellow viruses can transform people into different shapes and species, which is referred to as "weirdness". In the ''Mario and Luigi'' series, viruses are able to change their color when attacked, and are shown to wield spears. Lining up four viruses of the same color using capsules removes them.

===Personalities and relationships===
Throughout the ''Dr. Mario'' series, the viruses are shown to be mischievous and invasive. Three individual viruses—namely, Red, Blue, and Yellow, each representative of a virus color—are further characterized in promotional material for ''Dr. Mario World''; for instance, the [[Virus Vid]] series often portrays them as being too bumbling and incompetent to cooperate towards a common goal ("they never seem to get together"), though being otherwise fond of each other's company ("…but they do seem to get along, somehow"). The official ''Dr. Mario World'' Twitter and Facebook accounts, where announcements and updates related to the game are conveyed by the aforementioned three viruses, present a number of quips that reveal more particularities about their character. Yellow is shown to have a proclivity for snacks<ref>Drmarioworld_EN (December 10, 2020). [https://twitter.com/Drmarioworld_EN/status/1336981524001001473 Yellow: "There's an event starting today! If you want all the rewards, you'll have to eliminate 2,000 of us. Hey, how come we don't get any rewards? We're the ones getting eliminated! Could I at least get a snack or something?" #DrMarioWorld]. ''Twitter''. Retrieved May 4, 2022. ([https://web.archive.org/web/20201210103033/https://twitter.com/Drmarioworld_EN/status/1336981524001001473 Archived] December 10, 2020, 10:30:33 UTC via Wayback Machine.)</ref><ref>Drmarioworld_EN (September 1, 2021). [https://twitter.com/drmarioworld_en/status/1432953870884425730?s=21 Yellow: "The Log-In Bonus for September started today! You can get diamonds every day! Hmm... I wonder if I can trade diamonds for some snacks..." #DrMarioWorld]. ''Twitter''. Retrieved May 4, 2022. ([https://web.archive.org/web/20210901082504/https://twitter.com/Drmarioworld_EN/status/1432953870884425730 Archived] September 1, 2021, 08:25:04 UTC via Wayback Machine.)</ref> and a tendency to daydream and prattle about wings,<ref>Drmarioworld_EN (December 28, 2020). [https://twitter.com/Drmarioworld_EN/status/1343466795953516544?cxt=HHwWgMC7xdr7-aQlAAAA Yellow: "An event is going on where flying ? Blocks appear over some of the stages ahead. So much going on lately...I bet I'd get everything done faster if I had those wings! Anyway, more news coming up soon!" #DrMarioWorld]. ''Twitter''. Retrieved May 4, 2022. ([https://web.archive.org/web/20201228080046/https://twitter.com/Drmarioworld_EN/status/1343466795953516544 Archived] December 28, 2020, 08:00:46 UTC via Wayback Machine.)</ref><ref>Drmarioworld_EN (January 28, 2021). [https://twitter.com/Drmarioworld_EN/status/1354704537676820480?s=20&t=_Jff0e-tqOiFkR9jSGEjbQ Blue: "That block-hitting event just started in some of the later stages. Meanwhile, Yellow continues to go on and on about wings. I don't think he even wants to fly. I think he just thinks they're pretty." #DrMarioWorld]. ''Twitter''. Retrieved May 4, 2022. ([https://web.archive.org/web/20210128081523/https://twitter.com/Drmarioworld_EN/status/1354704537676820480 Archived] January 28, 2021, 08:15:23 UTC via Wayback Machine.)</ref> to Red's bemusement.<ref>Drmarioworld_EN (December 3, 2020). [https://twitter.com/Drmarioworld_EN/status/1334384401564753925 Red: "An event is going on where flying ? Blocks appear over some of the stages ahead. Speaking of which, Yellow keeps talking about making his own pair of wings. Where'd he even get the idea?" #DrMarioWorld]. ''Twitter''. Retrieved May 4, 2022. ([https://web.archive.org/web/20201203063032/https://twitter.com/Drmarioworld_EN/status/1334384401564753925 Archived] December 3, 2020, 06:30:32 UTC via Wayback Machine.)</ref> Red secretly wishes to be popular, and when Yellow makes his secret public, he does not object, confidently exclaiming that he is already popular due to his "eye-catching color".<ref>Drmarioworld_EN (February 10, 2021). [https://twitter.com/Drmarioworld_EN/status/1359389168141545472?s=20&t=_Jff0e-tqOiFkR9jSGEjbQ Red: "An event is going on where flying ? Blocks appear over some stages ahead. Yellow revealed my secret wish to be popular, but so what? I'm already popular. Red's the most eye-catching color!" #DrMarioWorld]. ''Twitter''. Retrieved May 4, 2022. ([https://web.archive.org/web/20210210063024/https://twitter.com/Drmarioworld_EN/status/1359389168141545472 Archived] February 10, 2021, 06:30:24 UTC via Wayback Machine.)</ref> In addition, Blue suggests that Red has poor planning abilities.<ref>Drmarioworld_EN (July 21, 2021). [https://twitter.com/drmarioworld_en/status/1417733580680278020?s=21 Blue: "The five specialists this week have their attack speed and defense increased by 10%. I'd personally recommend Dr. Luigi, as his defense is the highest of any doctor in this group—perfect for those who prefer to carefully plan out their approach. Unlike Red." #DrMarioWorld]. ''Twitter''. Retrieved May 4, 2022. ([https://web.archive.org/web/20210721063008/https://twitter.com/Drmarioworld_EN/status/1417733580680278020 Archived] July 21, 2021, 06:30:08 UTC via Wayback Machine.)</ref>

Red, Blue, and Yellow are not gregarious with other characters. In their above-mentioned social media presence, they often express fear when announcing the arrival of a new doctor, uttering pleas such as "Please take it easy on me".<ref>Drmarioworld_EN (April 1, 2020). [https://twitter.com/drmarioworld_en/status/1245245771831586817?s=21 Red: "A new doctor's coming Apr. 2, 1 AM PT. It's Dr. Nabbit! I wonder about consolidating that luggage... I mean, all that stuff could just go in that big sack! Think about it. Dr. Nabbit's the only new doc this time. Please take it easy on me." #DrMarioWorld]. ''Twitter''. Retrieved May 4, 2022. ([https://web.archive.org/web/20200401082148/https://twitter.com/Drmarioworld_EN/status/1245245771831586817 Archived] April 1, 2020, 08:21:48 UTC via Wayback Machine.)</ref><ref>Drmarioworld_EN (July 27, 2020). [https://twitter.com/Drmarioworld_EN/status/1287637926336069632?cxt=HHwWgICo6eX3zd4jAAAA Red: "Big news! Seems like THAT doctor is returning. I heard today's his 30th rotation around the sun. I don't think that's too old, but you should all wish him a happy birthday. Please take it easy on me." #DrMarioWorld]. ''Twitter''. Retrieved May 4, 2022. ([https://web.archive.org/web/20201128144152/https://twitter.com/Drmarioworld_EN/status/1287637926336069632/video/1 Archived] November 28, 2020, 14:41:52 UTC via Wayback Machine.)</ref> In a June 12, 2020 post, Yellow announced an in-game event where 20 of the then-available 21 doctors had their staffing rates increased by 1.5<ref>Drmarioworld_EN (June 12, 2020). [https://twitter.com/drmarioworld_en/status/1271246333429477377?s=21 Yellow: "Looks like doctor staffing rates are currently 1.5 times higher than normal. 20 doctors are available for staffing, and you can see them from Details under Staffing. As for that one I don't get along with... Yep, there you go." #DrMarioWorld]. ''Twitter''. Retrieved October 24, 2021. ([https://web.archive.org/web/20200612013034/https://twitter.com/Drmarioworld_EN/status/1271246333429477377 Archived] June 12, 2020, 01:30:34 UTC via Wayback Machine.)</ref><ref>Dr. Mario World (June 12, 2020). [https://facebook.com/photo.php?fbid=736156413786921&id=405022973566935&set=a.480040666065165&source=54&refid=13&__tn__=%2B%3E Yellow: "Looks like doctor staffing rates are currently 1.5 times higher than normal. 20 doctors are available for staffing, and you can see them from Details under Staffing. As for that one I don't get along with... Yep, there you go."] ''Facebook''. Retrieved October 24, 2021.</ref>, with the omitted doctor being [[Waluigi|Dr. Waluigi]]<ref>Sam Hard (June 15, 2020). [https://youtu.be/XLI7dW8NRkQ Dr. Mario World: 38 staffing pulls; 16 doctors]. ''YouTube''. Retrieved October 24, 2021.</ref>; the virus indicates in the post that said doctor was left out because they particularly do not get along.

==Profiles and statistics==
===''Super Smash Bros.'' series===
====''Super Smash Bros. Melee'' trophy====
{|border=1 cellpadding=1 cellspacing=0 width=100%
|-
!width=100px|Name!!width=100px|Image!!width=150px|Game!!|Description
|-
!Viruses
|[[File:Trophy211.png|100px]]
|align=center|''Dr. Mario''<br>10/90
|''These contagious viruses make life difficult for Dr. Mario. They infect everything they come into contact with, and the good doctor must attempt to neutralize them with his trusty megavitamins. Dr. Mario can stop these pesky germs by lining up the megavitamin capsules of the same color with the nasty microorganism.''
|-
|}

====''Super Smash Bros. Brawl'' stickers====
{|border=1 cellpadding=3 cellspacing=0 style="text-align:center" width=100%
|-
!width=120px|Name!!width=120px|Image!!width=200px|Game!!|Effect
|-
|Blue Virus
|[[File:Blue Virus Sticker.png|100x100px]]
|''[[Nintendo Puzzle Collection]]
|align=left|[Electric] - Attack +5
|-
|Red Virus
|[[File:Red Virus Sticker.png|100x100px]]
|''[[Nintendo Puzzle Collection]]
|align=left|[Flame] - Attack +20
|-
|Yellow Virus
|[[File:Sticker Virus Yellow.png|100x100px]]
|''[[Nintendo Puzzle Collection]]
|align=left|Food Effect +4
|}

====''Super Smash Bros. for Wii U'' trophy====
{| align=center width=100% cellspacing=0 border=1 cellpadding=3 style="border-collapse:collapse; font-family:Arial;"
|-
!width="10%"|Name
!width=100px|Image
!width="21%"|Appears In
!American English description
!British English description
|-
!Viruses
|[[File:VirusesTrophyWiiU.png|100px]]
|align=center|'''GB''' ''Dr. Mario'' (12/1990)<br>'''Wii''' ''Dr. Mario Online Rx'' (05/2008)
|''At the forefront of medical science, you have to be equal to whatever nature throws your way–that's why Dr. Mario's medicine cabinet includes red, blue, and yellow capsules to combat these red, blue, and yellow viruses! Over 20 years after Mario first took up medicine, Luigi joined the fight with his new L-shaped vitamin.''
|''At the forefront of medical science, you have to be equal to whatever nature throws your way - that's why Dr. Mario's medicine cabinet includes red, blue and yellow capsules, for any colour of virus. If you can't visit Dr. Mario, at least go and see Dr. Luigi, who set up his first practice more than 20 years later.''
|-
|}

====''Super Smash Bros. Ultimate'' spirit====
{| align=center width=100% cellspacing=0 border=1 cellpadding=3 style="text-align:center; border-collapse:collapse; font-family:Arial; font-size:85%;"
|-
!rowspan=2 width=3%|#
!rowspan=2 width=8%|Name
!rowspan=2 class=unsortable width=10%|Image
!rowspan=2 width=8%|Series / game
!rowspan=2 width=5%|Type
!rowspan=2 width=5%|Class
!rowspan=2 width=8%|Strength / effect(s)
!rowspan=2 width=13%|How to obtain
!colspan=4 width=40%|Spirit battle
|-
!width=7%|Opponent(s)
!class=unsortable width=19%|Battle conditions
!width=7%|Stage
!width=7%|Song
|-
|116
!Viruses
|[[File:SSBU Viruses Spirit.png|x100px]]
|''Dr. Mario'' Series
|Support (1)
|Advanced
|Poison Damage Reduced
|World of Light (Light Realm); Spirit Board
|[[Kirby]] ×3
|
*Timed battle
|[[Mario Bros. (stage)|Mario Bros.]] (Battlefield)
|Fever
|}

===''Mario & Luigi'' series===
====''Mario & Luigi: Superstar Saga''====
{{:Mario & Luigi: Superstar Saga bestiary|transcludesection=Red Virus|align=horizontal|image=[[File:MLSS RedVirus.gif]]}}
{{:Mario & Luigi: Superstar Saga bestiary|transcludesection=Blue Virus|align=horizontal|image=[[File:MLSS BlueVirus.gif]]}}
{{:Mario & Luigi: Superstar Saga bestiary|transcludesection=Yellow Virus|align=horizontal|image=[[File:YellowVirus.gif]]}}

====''Mario & Luigi: Dream Team''====
{{:Mario & Luigi: Dream Team bestiary|transcludesection=Virus (Red/Blue/Yellow)|align=horizontal}}

====''Mario & Luigi: Superstar Saga + Bowser's Minions''====
{{:Mario & Luigi: Superstar Saga + Bowser's Minions bestiary|transcludesection=Red Virus|align=horizontal|image=[[File:MLSSBMVirusRedIdle.gif]]}}
{{:Mario & Luigi: Superstar Saga + Bowser's Minions bestiary|transcludesection=Blue Virus|align=horizontal|image=[[File:MLSSBMVirusBlueIdle.gif]]}}
{{:Mario & Luigi: Superstar Saga + Bowser's Minions bestiary|transcludesection=Yellow Virus|align=horizontal|image=[[File:MLSSBMVirusYellowIdle.gif]]}}

==Quotes==
{{main|List of virus quotes}}

==Gallery==
{{main-gallery}}
<gallery>
Viruses.gif|''[[Dr. Mario (game)|Dr. Mario]]
Virus laugh.gif|''Dr. Mario'' (NES)
Virus movement (game boy).gif|''Dr. Mario'' (Game Boy)
BlueVirus2.png|''Dr. Mario
Pills can be deadly.jpg|''Dr. Mario
Run.jpg|''Dr. Mario
</gallery>

==Names in other languages==
{{foreign names
|Jap=ウイルス<ref name=DMWJP>[https://twitter.com/Drmarioworld_JP/status/1140794728159440896 Official Japanese ''Dr. Mario World'' Twitter]. ''Twitter''. Retrieved June 18, 2019.</ref>
|JapR=Uirusu
|JapM=Virus
|Chi=病毒
|ChiR=Bìngdú
|ChiM=Virus
|Fra=Virus
|FraM=-
|Ger=Virus
|GerM=-
|Ita=Virus
|ItaM=-
|Kor=바이러스
|KorR=Baireoseu
|KorM=Virus
|Por=Vírus
|PorM=-
|Rus=Вирус
|RusR=Virus
|RusM=Virus
|SpaA=Virus
|SpaAM=-
|SpaE=Bacteria
|SpaEM=
}}

===Red===
{{foreign names
|Jap=レッド<ref name=DMWJP/>
|JapR=Reddo
|JapM=Red
}}

===Blue===
{{foreign names
|Jap=ブルー<ref name=DMWJP/>
|JapR=Burū
|JapM=Blue
}}

===Yellow===
{{foreign names
|Jap=イエロー<ref name=DMWJP/>
|JapR=Ierō
|JapM=Yellow
}}

==References==
<references/>

{{DM64}}
{{M&LSS}}
{{M&LBIS}}
{{M&LDT}}
{{DMMC}}
{{DMW}}
[[Category:Aliens]]
[[Category:Diseases]]
[[Category:Poisonous creatures]]
[[Category:Parasites]]
[[Category:Amiibo tap: Nintendo's Greatest Bits]]
[[Category:Dr. Luigi]]
[[Category:Dr. Mario]]
[[Category:Dr. Mario 64]]
[[Category:Dr. Mario Express]]
[[Category:Dr. Mario: Miracle Cure]]
[[Category:Dr. Mario Online Rx]]
[[Category:Dr. Mario Vitamin Toss]]
[[Category:Dr. Mario World]]
[[Category:Mario & Luigi: Bowser's Inside Story enemies]]
[[Category:Mario & Luigi: Dream Team enemies]]
[[Category:Mario & Luigi: Superstar Saga enemies]]
[[Category:Super Smash Bros. Brawl stickers]]
[[Category:Super Smash Bros. for Wii U trophies]]
[[Category:Super Smash Bros. Melee trophies]]
[[Category:Super Smash Bros. Ultimate spirits]]
[[de:Virus]]
[[it:Virus]]