Usage examples (36)

• Asibi virus to the relatively avirulent French strain.
• In my own experiments with tubercle bacilli of human origin which were avirulent to cattle, cultures were always used which had been cultivated for years in the laboratory.
• This proved of great value, for as strains of virus avirulent for monkeys were developed, the mouse was the only animal by which the presence and amount could be readily...
• Rps3a is indicated as avirulent (A) or virulent (V).