User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4361439-20130313230024/@comment-5043481-20130314221329

Who says he has to administer it himself?

If it was transmitted by ticks or similar, like the AWC mentioned in the main body of the blog, then they could just ly around in long grass and then infect whatever passes through. Yes they wouldn't last very long outside goa's protection, but they could still infect an Unknown Rathian if goa had passed through the day before.