CBC Test; normal after 4 yrs infected Dr. Holodniy,A friend tested HIV+ 4 years ago. He has chosen to abstain from taking any medications (due to personal reasons). Recently, he took a CBC test and everything showed up as normal. Why is that? Shouldn't his WBC count be a little low?
Encountering a Shiny Legendary or a random shiny Tentacool have the same rate of 1 in 4,096. However in the wild the chance of a Shiny Pokemon with Pokerus is 1 in 178956971. Your Latias is very rare as it is Shiny but also has Pokerus. However the Latias probably had Pokerus infected onto it via another Pokemon. There is also a possibility it was hacked too.
Poseidus - Reins of Poseidus. Poseidus is a highly sought after hostile level 81 rare seahorse with approximately 55.8k health who spawns in the under water zone Vashj'ir. He has four different spawn points in the Shimmering Expanse (they are shown in orange on the second map below).