Wild waterfowl have been known for some time to be the natural reservoir of all influenza a viruses.
2
该模型可预测多少病毒粒子引起感染以及受感染宿主中,如植物,昆虫或人,有多少种不同病毒基因型存在。
This model predicts how many virus particles have caused an infection and how many different virus genotypes are present in infected hosts, such as plants, insects or people.
3
松毛虫质型多角体病毒的宿主域与交叉感染。
Host range and cross infection of cytoplasmic polyhedrosis viruses from Dendrolimus SPP.