Respuestas al mensaje #89

🇵🇦 Nuestro primer dominio localizado está en español en kiwifarms.pa. Our first localized domain is on Spanish on kiwifarms.pa.

Are you sure about that? You can infect a ferret with influenza sprayed up the nose.

You didn't answer the question. Why does Marek's disease only occur when exposed to the virus causing it. Why shouldn't avian influenza occur...