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Pokemon FireRed and LeafGreen (FRLG)

Can You Get Pokerus?

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★ Best Pokemon Tier List
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★ Shiny Hunting Guide and Shiny Odds
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Pokerus cannot be spread in Pokemon FireRed and LeafGreen (FRLG). Learn more about Pokerus and whether you can get the virus in this guide.

List of Contents

Can You Get Pokerus?

Pokerus Cannot Infect or Spread to Other Pokemon in FRLG

In Pokemon FireRed and LeafGreen, it is impossible to find a wild Pokemon with the virus. Pokerus can only be spread to other Pokemon on Pokemon Ruby, Sapphire, Emerald and other succeeding Pokemon games until Generation 8.

An infected Pokemon from Ruby, Sapphire, or Emerald that's been traded into FireRed and LeafGreen can exist with the virus. However, Pokerus cannot spread to other Pokemon since the game has no in-game clock system. With this, it's impossible to get Pokerus in FireRed and LeafGreen through normal means.

What is Pokerus?

Rare Virus That Infects Pokemon

Pokerus is a virus that can infect a Pokemon. While it may sound concerning, Pokerus is actually harmless and can double the EVs gained from battle.

EV Training Guide

How to Get Pokerus

In other Pokemon games, there is a rare chance to run into a wild Pokemon with Pokerus. Infected Pokemon can be identified by the PKRS displayed in their status condition once caught.

Since Pokerus doesn't exist normally in FireRed and Leafgreen, infected Pokemon that have been traded in will indefinitely keep the virus until it's transferred back to a Hoenn-based game.

Pokerus Can Spread in Other Pokemon Games

In succeeding Pokemon titles, Pokerus also has a chance to spread to adjacent Pokemon in the party. You can attack the infected wild Pokemon with a move that will make contact with it to catch the virus. After your Pokemon catches the virus, place it in either Slot 3 or 4 of the party for a chance to spread it to the entire team.

Pokemon FireRed and LeafGreen Related Guides

Pokemon FRLG - TnT Slim

Beginner's Guides

List of Tips and Guides

General Guides
Shiny Hunting Guide and Shiny Odds All Gift Pokemon
Rival's Canon Name Protagonist's Canon Name
Lt. Surge Puzzle Guide All Move Tutors and Important NPCs
Best Gym Order -
How-To Guides
How to Get Shiny Starters How to Soft Reset
How to Trade How to Open the Main Menu
How to Find Hidden Items How to Use Key Items
How to Get the Bike How to Get Old Rod
How to Get Good Rod How to Get Super Rod
How to Get the Old Man Out of Route 2 How to Get to Three Island
How to Register Items to Select Key How to Use Potions
How to Use Repel How to Get Silph Scope
How to Get Gold Teeth How to Get Macho Brace
How to Get Coin Case How to Get the Mystic Ticket
How to Get the Aurora Ticket How to Get to Sevii Islands
How to Get the Poke Flute How to Stop Pokemon From Evolving
How to Evolve All Pokemon How to Wake Up Snorlax
How to Check Friendship (Happiness) How to Fast Travel
How to Win at Slots in the Casino How to Get the Legendary Dogs
How to Break Rocks and Other Obstacles How to Get Berries
How to Catch 60 Pokemon Fast How to Get All 3 Starters
How to Get to Resort Gorgeous How to Get Luxury Balls
Location Guides
Move Deleter Location Move Relearner Location
Where to Get The Running Shoes All Incense Locations
Amulet Coin Location Where to Find Lucky Egg and Odds
Yellow Flute Location VS Seeker Location
EXP Share Location Itemfinder Location
Rare Candy Locations Pokemon Day Care Location
All Professor Oak Aides Locations and Rewards Where to Buy Ultra Balls
Master Ball Location and Who to Use It On Name Rater Location: How to Change Nickname
All Rare Pokemon Locations Magikarp Salesman Location: How to Get Magikarp Early
Selphy Location and Rewards -
Status Effect Guides
All Status Effects Poison
Paralysis Burn
Freeze Confusion
Sleep -
Frequently Asked Questions
Can You Get Mew? Best Natures for Starters
The Best Natures for Every Pokemon Which Fossil Should You Choose?
Hitmonlee or Hitmonchan? Mega Punch or Mega Kick?
Is There a Physical and Special Attack Split? Are There Fairy Types?
Can You Complete the Kanto Dex? Can You Complete the National Dex?
Can You Get a 4-Star Trainer Card? Can You Get Pokerus?
What are STAB Moves? Differences from the Original GBA Versions
How Long to Beat Best Eevee Evolution

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