How do you get the Pokémon pokevirus?

Answer 1

If you mean PokeRus, then you can only get it by encountering a Pokemon with pokerus in the wild. It is hard, though, because you don't know if a Pokemon has it, and the odds are about the same as finding a shiny, which is extremly low odds.

What you do is, after you encounter a wild Pokemon that you think has pokerus, you go to a Pokemon center and the nurse will say if your Pokemon has it. It only lasts for a few days in your party, so have one Pokemon infect all of you party Pokemon, then put all but one Pokemon in your PC, then put 5 uninfected Pokemon from your PC to your party, and eventually those Pokemon will have the virus as well, then repeat.

Answer 2

Pokémon outbreaks (Japanese: 大量発生mass outbreak), also known as swarmsand-in Generation IV-Mass Outbreaks, are a feature introduced in Generation II that allows the player to catch Pokémon that are usually rare or otherwise unobtainable. Pokémon outbreaks originated in Generation II. In that generation, if the player registered a certain Trainer in the Pokégear, that Trainer would occassionally call to tell the player that he saw or heard about a large number of Pokémon in a certain area; for the next 30 minutes after such a call (in real time, not play time), the swarming Pokémon would appear in the given area with much greater frequency than the usual 1%. In Generation III this method allows the player to catch Pokémon that cannot be caught normally and make rare Pokémon temporarily more common. This was possible due to the record mixing feature of Pokémon Ruby and Sapphire. The outbreaks are advised bytelevisions in houses, where the Pokémon and its location is told. Pokémon outbreaks were largely expanded in Generation IV. Once the player attains the National Pokédex, every day in a particular location, a "swarm of Pokémon" appears, which changes the probability of finding the given Pokémon from 0% to 40%. Outbreaks last only one day and are random events. Information about Pokémon outbreaks can be found in Sandgem Town, by watching Sinnoh television, or by listening to Professor Oak's Pokémon Talk. When players all join the same group, they will all experience the same outbreak on any given day. The species of an outbreaks seems to be determined using a formula, because it is not chosen randomly when the player starts the game that day. It is also possible that the species is determined the day before, though there is no additional evidence to support this. If the DS clock is changed or a different DS is used, then the game will detect this and will not change the species swarming until 12:00 AM. By also using the Poké Radar and dual-slot mode in Pokémon Diamond and Pearl, players can get all Pokémon excluding Tangela, Tropius, the starter Pokémon, and legendary Pokémon of previous generations, while Tangela, Tropius and two Legendary Trios can be regularly acquired in Pokémon Platinum. Many of the Pokémon obtained through Pokémon outbreaks are outside of the Sinnoh Pokédex, and are usually exclusive to other regions. However, the player can obtain information about the current outbreak by talking to, depending on their own gender, Dawn's or Lucas's sister in Sandgem Town, or seeing the news report on a TV. Due to higher catching rates for Pokémon that appear during outbreaks, they make longer and better chains when using Poké Radar. The feature also appears in HeartGold and SoulSilver, where all the wild Pokémon available include all those that were available in Generation II, Ditto, Chansey, and Pokémon from Hoenn and Sinnoh. Information on swarms can now be found by listening toProfessor Oak's Pokémon Talk on the Pokégear radio. In Black and White, the gates in Unova have a monitor inside that will alert the player where an outbreak is taking place. During winter, the monitor may occasionally not report on outbreaks, which is due to parts of Route 8, where Croagunk can be found, becoming frozen duringWinter and not allowing the Pokémon to be caught there. All have the level range of 15-55. Unlike previous games, the Pokémon outbreaks can be manipulated by soft resetting the game: turning the console off without saving the game beforehand. When the game is restarted, there will be a different Pokémon swarming.

Hope that helped!!

-got from Bullapedia

Answer 3

It is when a pokemon that you usually can't find in the wild appears at a certain route.