“avirulent”可以造什么句，avirulent造句

Comparative proteome study on extracellular proteins of virulent and avirulent Streptococcus suis type 2

Genetic difference between Streptococcus suis serotype 2 virulent strain and avirulent strain by suppression subtractive hybridization

Its characteristic is long do not fade, natural, beautiful, avirulent insipidity.