The Rare Pokemon Virus You WANT To Catch! | The SCIENCE of... Pokemon (Pokerus)
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We've talked about shiny Pokemon, one of the rarest finds in any Pokemon game. Today, Austin is going a step further in the rare department. Theorists, have any of you ever heard of the Pokemon virus known as the Pokerus? I'm going to guess even some of the most fanatic of Pokemon fans watching this have not. What is the Pokerus? What does it do? And why, Theorists, do you WANT to catch it? Austin, take it away!

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  • Chandrakala Vegi
    Chandrakala Vegi

    Hey everyone !! Trying to find a good discord server to talk stuff about Pokémon?? Then here is a new server where you can talk with some people (the server is presently new so can't say how many people will be there) join now by clicking this link :-

  • ¿Error?Fox

    Does anyone here have a pokemon with pokerus?I need it until I can spread it to one of my team members

  • Aniket Verma
    Aniket Verma

    funni ha ha

  • BEAR

    I went to see the stats of my pokemon and i saw the poke rust symbol

  • Devin Dyquisto
    Devin Dyquisto

    Or. You can gen Pokemon.

  • pyroslashrs cozy corner
    pyroslashrs cozy corner

    when you go to a doctor for a check up and the doctor knows you have been sick they always say "looks like you body has eliminated the virus" or "looks like the virus has been killed", how can you kill/eliminate something if it's not already alive, no matter what doctor i go to they always say it

  • BalrogSandwich

    I discovered pokemon quite late, when I was around 18 and in my very first game (emerald) my pokemon caught the pokerus. I asked my friend about it and she was shocked and had no clue what it was. We googled it later that day. I only got the Virus only one other time in multiple play throughs of different games

  • Ryan Vanden
    Ryan Vanden

    If you boost a Pokémon’s EV stats by 510 in the first generation, will the stats remain the same when transferred ahead in the series, or reset to the maximum potential “cap” by the stat calibration of the following games..?

  • PC

    we need more austin

  • Matthew Donoghue
    Matthew Donoghue

    Shinies depend on what game you're playing. Gen 4 and behind are the 8,192. Gen 5 and beyond are 4,096 (Like that Bulbasaur depicted) have halved shiny-odds, meaning .006% of the time

  • matthew smith
    matthew smith

    When you click on a game theory and hear him click. Me: "This is gonna be good!"

  • K1LLERK1D01

    I have a shiny eevee infected with pokerus

  • violet guy
    violet guy

    Meh having a cinderace with pokerus that had a hidden ability one in a mill chance😂😂

  • Richard Dill
    Richard Dill

    New subscriber so a little late, but; did anyone else find it funny that he put Cofagrigus (a gen 5 'mon) on a FireRed/LeafGreen (gen 3) template?

  • damon Jackson
    damon Jackson

    pokemon: is laying on the ground chared completely black like fresh charcoal game: it's knocked out.

  • raijin 1378
    raijin 1378

    Your mitochondria is actually a virus so....yeah it has it's own set of DNA which is different then your sequence oh and without this virus/parasites you would cease to exist so in otherwords you would die just saying thank you parasite eve which is what peaked my interest in such topics

  • BrewDiePie

    Laughs in 250pounds

  • Grelm

    Diuretics help you pee, not poop. Totally unrelated to the word "diarrhea".

  • XenonTheBuizel

    What the intro classical song?

  • HomicidalPhone

    Pokerus is the powerhouse of the cell.

  • cjay97

    I got the corona-- I mean, the Pokerus, a few hours ago.

  • Rep. of Antarctica
    Rep. of Antarctica

    It's so cute that he says #DadBodsUnite when he's only 170 lbs. 😅 I'm not saying he doesn't have a dad bod, but 170 is pretty low end; I wish I was still that weight, because returning to it is not easy.

  • TheInkyAbyss

    10:23 those look like the injectors from steven universe.

  • Lets talk games
    Lets talk games

    crisper is actually a bactria that survived an attach from macro fage

  • River Quest
    River Quest

    "like catching a shiny 2.5 times" Do we split the last one in 2?

  • justino tagliavini
    justino tagliavini

    My whole pokemon team in HGSS just got Pokerus, i guess im lucky

  • Pedro_Neo_Studio

    I remember when my best friend and fellow Pokemon nerd Bruno explained this to me for the first time... It totally blew my mind and then, after training a few mons properly, I was able to actually have fun at the Battle Tower.

  • Tyler Jennings
    Tyler Jennings

    The only problem is that max EVs are still limited. :(

  • Naomi Kemp
    Naomi Kemp

    I just got my first pokerus infected mon today... A shiny eevee I got in a wonder trade that was holding a masterball LMAO. I was like oh, okay. So what's the best cause of action now? Of course breeding and handing out pokerus infected eevee's like candy. It ain't much but it's honest work. 😂

  • Kit White
    Kit White

    When I took genetics for my BS in Bio, we had a whole debate on Virus and Prions being "alive or not". We determined that Virus' were Vampires and Prions were Zombies. This was a decade ago so I don't quiet remember how we came to that conclusion. My Prof had to put a stop to it cause it took over the discussion board in blackboard. It is indeed a fascinating topic. And a bit disturbing also given the nature of Prions.

  • Dig Deeper
    Dig Deeper

    I actually have some Pokemon with the pokerus in Pokemon ultra sun

  • Al Trujillo
    Al Trujillo

    Badly informed with EV-to-STATS ratio.

  • Alliana Moore
    Alliana Moore

    vitamins work the whole way up to max EVs as of sword and shield for anyone interested in strong pokemon but not the hassle of EV training

  • TheDissilent 8
    TheDissilent 8

    I kind of think virus's are aliens.

  • Blu3 M00N Baf00n Gaming
    Blu3 M00N Baf00n Gaming

    Actually a lv 100 Pokémon’s stat only goes up by 1 for every 4 evs and you can only max out 2 stats with evs and any Remaining points into any other stat or distribute the 510 evs amongs the different stats but then you won’t be able to fully max stats to the limit so for every 100 evs a stat only goes up by 25 points not 100 Austin even with pokerus those limits still exist

  • Phrog J wimbleton
    Phrog J wimbleton

    Before i watched this i got a pokemon ad

  • No Name
    No Name

    That's not how EV training works. 😐

  • Victor Romário Alvez Zaak Saraiva
    Victor Romário Alvez Zaak Saraiva

    alive is a made up concept so no one can arbitrarily rule something as alive or not, but yes i think viruses are alive

  • Mr. Mehpersonguy
    Mr. Mehpersonguy

    If it’s extremely contagious then how is it more rare than shinies

  • Joy McGill
    Joy McGill

    I got pokerus one time after I battled ditto. I got it a second time after I got a ditto.

  • Joy McGill
    Joy McGill

    Pokerus is that rare? How have I had it like 4 different times in different games and only ever found 1 natural shiny. 🙁

  • Big Cow Productions
    Big Cow Productions

    170lbs, 'dadbod'? Darling, cash that reality check

    • Big Cow Productions
      Big Cow Productions

      @Matthew Crane lmaoo

    • Matthew Crane
      Matthew Crane

      Having a dad bod doesn’t have anything to do with weight lol

  • Big Cow Productions
    Big Cow Productions

    The last 4 episodes I can ever remember of yours are you in some stage of illness. You okay?

  • ShadowPoni

    I only (legitimately, without trading) got pokerus one time, back in... I think it was... Hm... it was either Crystal version, or possibly Leaf green. I'm leaning more toward Crystal, because I played it way more than Leaf. Edit: just remembered I had a sneasel I infected with it in Pearl. I'm really not sure what exactly happened, like if it was a glitch or if I did some weird specific thing that happened; but after I'd figured out how to evolve it (around lv.50 was when I found out about the razor claw).. the first time it leveled up after evolving, most of its stats went up by 15-20 each??? I don't know if it was because I evolved it so late, and the virus just caused the stats to jump to what they would have been if I evolved the sneasel at an earlier level? I know that pre-evolutions get less stat boosts than evolved forms; so that was the only reason I could think of that would cause it...

  • Deepanshu Singhal
    Deepanshu Singhal

    Then is it possible that just like computer viruses, real viruses are also created? By some extraterrestrial species who is altering every species' dna on different planet with their own dna and those whose physical immunity denies it fall sick.. Were we evolved by natural selection or someone manipulated our genes to evolve this way?

  • Nikolai13

    *drops vial of T-Virus* "Oopsy-poopsy!"

  • Carter TheUnimaginitive
    Carter TheUnimaginitive

    Is is nearly three times more common in gen 8 to get pokerus

  • Carter TheUnimaginitive
    Carter TheUnimaginitive

    Me: Casually watches while infecting the rest of my Pokémon with pokerus

  • The Blue Phoenix: Captain Gamer
    The Blue Phoenix: Captain Gamer

    I can't believe Tier Zoo and Austin are buddies.

  • Azerty2978 azerty
    Azerty2978 azerty

    If viruses are living bodies? Yes, I think so. I like to think that they appeared on Earth, but separately from the first cells... another evolution branch that used the other to survive... Maybe that's totally messed up (which could totally be). Edit : It is not really a serious theory just a random thought that came of mu mind that's not serious business

  • Yann Oliveira
    Yann Oliveira

    can we stop for a second and discuss about how a bacteriophage basically rapes a bacteria? the difference is that I personally think they deserve it

  • Refurbished Condom Salesman
    Refurbished Condom Salesman

    When I was younger I remember my friend coming over to show me and my other buddy his pokemon had pokerus, I was very skeptical on it even existing because it sounded like b.s.and I've been playing since gen 1. Anyways I took a look at his pokemon and I was shocked so I asked him how did he get it and where he was at that time to see if I could get it but he insisted that it was just luck and location had nothing to do with it but I went over to the same place which was victory road (ruby version) and started battling random pokemon and ended up fighting a loudred after the battle I went to the nearest pokemon center and in my disbelief the nurse said my pokemon has it!!! I was so estatic what is the likely hood that 2 people in the same room getting pokerus within an hour of each other and mind you this was back in the gba days and me and my friends didn't have a link cable so there's no way I got it from him. I asked my third friend to go to the same area I was just to see if he got it but unfortunately he wasn't so lucky .even to this day I'm still skeptical on it being a luck thing.

  • Ali Martinez Jurado
    Ali Martinez Jurado

    3 of my pokemon caught the pokerus virus

  • Jocelyn Klarer
    Jocelyn Klarer

    Rewatching this episode after Covid-19, the pandemic, and 2020 hits on a whole other level….

  • Very chill child
    Very chill child

    My pokemon got it in the same day when I got to shinies in less then 3 minutes (today at the time I’m writing this)

  • Steven Feagley
    Steven Feagley

    It may not produce like creatures like humans and animals but they are alive in their own right and way.

  • Da-punisher556

    My Pokémon got it I guess I’m lucky

  • fr3domgod

    Where's mp

  • EZ Breezy Gaming
    EZ Breezy Gaming

    4 ev = 1 stat point. Not a 1:1 ratio. Love you guys

  • • Grio •
    • Grio •

    You caught a Eevee... Wait, it's shiny....Let's go to the Pokemon center... Wait it have Pokerus too!?

  • MythicalCookies

    All of my pokemon has pokerus......... Yet I've never seen a shiny pokemon....

  • Safe

    After like 2 years of not opening my DS lite in Summer of 2020 I got my pokemon in Platinum infected by a pokerus, only to find out that the wild pokemon that infected my pokemon was a chansey with a pokerus that I caught. It's nuts.

  • Lucky Arceus
    Lucky Arceus

    Are…are pokerus viruses also Pokémon themselves? If this does happen in the future, I’m calling poison/psychic type.

  • Moadot720

    0:50 He BETTER not have been in college while I’m not!!!!

  • Emma Gill
    Emma Gill

    I had no idea Pokerus was so rare - I’ve had it randomly (especially in like gen 3 games) many times, way more often than I’ve ever found a shiny 🤔

  • Izhar Ahmad
    Izhar Ahmad

    6:25 Lets all remember Uvogin for a second

  • the meeper
    the meeper

    5:13 I would've done speed

  • Jose Jasso
    Jose Jasso

    I got it from when I was tradeing in ultra moon then after a while it infected all of my Pokémon

  • Charlie C
    Charlie C

    Ah yes Pokémon genocide

  • David Fisher
    David Fisher

    Vitamins increase all the way to 252EVS in Sword and Shield.

  • Maria Luisa Berard
    Maria Luisa Berard

    Pokemon:did we done that?

  • Val Broderick
    Val Broderick

    Can I just point out that to what Austin was talking about whether or not viruses are "alive", many of the things there are not qualifyers. Several of these are just checking whether or not something is similar to other living things, not whether something is "alive" or not. We can get rid of the 1st, 4th, and 5th, at the very least.

  • Amber Bansal
    Amber Bansal

    Did anyone notice folder named Pet stuff !

  • Hazel O'Brien
    Hazel O'Brien

    The millions of micro organisms going inside me Me: RAAAAAAAAAPPPEEE

  • Becca Ryuu
    Becca Ryuu

    Does anyone know the song that starts playing around 6:28 after the Buneary is kil- uh I mean fainted....? :)

  • Eva-Naiya Torian
    Eva-Naiya Torian

    Hey Austin what are the chances that the pokemon flu can be transferred to electric type Pokemon and said trainers with electric type Pokemon?

  • Den Sevostyanov
    Den Sevostyanov


  • Thabang Nkopane
    Thabang Nkopane


  • ale x
    ale x

    pokerus more like pokecovid-19

  • Koza plays.
    Koza plays.

    The original virus design looks human made change my mind.


    me to virus: you saved me but why virus:monke

  • Just Another undertale Geek
    Just Another undertale Geek

    Viruses are artificially made infection by future humans AKA aliens to kill, benifit, harm or evolve any organisum it infects

    • Just Another undertale Geek
      Just Another undertale Geek

      That's what I think

  • blood bag
    blood bag

    this virus legit looks like a funking robot :∆

  • Persephone Reverie
    Persephone Reverie


  • alolanraichu

    I only found pokerus once on pokemon,think it was in alpha sapphire when I first found it,I've heard about it years before so I know how extremely rare it is

  • FdR NGM
    FdR NGM

    Viruses are aliens.

  • Redemption

    This isnt mattpat lol

  • SammySuxs

    me with my level 100 scorbunny or the 3rd evo of that starter w the virus😎

  • ThunderWolf600

    As a pokemon nerd..... that isn't how EV's work lmao

    • alolanraichu

      it's too confusing for me to understand

  • Gabriel Le Pen
    Gabriel Le Pen

    Smugon Competitors: Who's ready to ignore all the basic sanitary rules?

  • Hikari Azuriel
    Hikari Azuriel

    Tier Zoo is legit one of the best ytb when it comes to biology!

  • darktemplar446

    Your really confused by EV training...just saying. You got it pretty wrong here. =X

  • AetheralMeowstic

    Here's a theory: PokéRus was designed by SilphCo. prior to the events of GSC.

  • AetheralMeowstic

    14:08 _Jiggly Bu_

  • AetheralMeowstic

    So, PokéRus is artificial?

  • AetheralMeowstic

    Again with the Kanto Plurals. The singular and plural forms of a Pokémon's name are identical. Changing the spelling to pluralize the name was a localization error from the first few episodes of Season 1 of the anime. It was corrected in later episodes soon after it was discovered. If I've said it once, I've said it a million times: in terms of pluralization, the closest English word to a Pokémon's name would be _deer,_ as its singular and plural are identical under all circumstances. Here's an easy rule to remember when pluralizing the name of a Pokémon: _The plural of Pokémon name X is always X. No spelling changes, no pronunciation changes, no exceptions._

  • AetheralMeowstic

    It's not a coma, it's just briefly unconscious. It's assumed that either it recovers shortly after the battle or an area Pokémon Ranger heals it.

  • AetheralMeowstic

    Honestly, when people say they "killed" a wild Pokémon, it annoys me to no end. Pokémon are only killed in certain cutscenes of the dark story for _Pokémon Insurgence,_ a scene where the protagonist rips off the head of a Nuclear-Type (I wish I was kidding) in the fan-made _Pokémon Uranium_ fanfiction _Adventures in Tandor,_ and the incomplete and abandoned fanfiction _Game of Champions._

  • AetheralMeowstic

    The vitamins are liquid, not pills.

  • AetheralMeowstic

    I like to make my Pokémon blindingly fast. More specifically, with the Snivy line, I like to combine blistering Speed (taking advantage of its status as Unova's fastest starter) with mind-blowing Special Attack and go with moves like SolarBeam, Giga Drain, Energy Ball, and Leaf Storm, as well as getting it to hold a Miracle Seed to ramp things up even further.

2,8 m.
2,8 m.
The Harry Curse
1,7 m.