英和和英

viral infection

an attenuated virus

infection

the dissemination of disease-germs

the biology of viruses

plant viruses

the medium―the vehicle―of disease-germs

a viral infection

the incubation period―the latent period

Bacteria effect

a filterable virus

a caprine strain of virus

to be infected

a virus disease

parasitic infection

a pathogenic virus called the AIDS virus

a virus of typhoid

The disease-germs have spread.

the virulence of the plague

influenza germs

a virus called {rotavirus}

the focus of infection

an enterovirus of the echovirus type, sometimes causing mild meningitis

tending to destroy viruses

a virus called {poliovirus}

an acutely debilitating virus

bacterial infection

an infections disease

a contagious disease

a catching fever