User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-6050823-20130810015021/@comment-6050823-20130810225126

Speaking of Feral Wyvern Virus, the virus is caused by Goa Magara's scales and hair, and it causes lowered resistance and abnormalities in the nervous system appears in organisms that inhale in the virus. These syptoms develop when your hit by the scales or inhale them.