Most of these viruses are harmless in their natural hosts, though they may become virulent (causing symptoms almost identical to AIDS) if introduced into other species of monkey.
Metarhizium anisopliae strain V275 was the most virulent, causing a significantly decrease in midge survival compared to all other fungal strains tested.
Although the growth curves do not differ substantially in mice, CDC1551 promotes a strong, early Th1 response and is less virulent in mice, while HN878 is less immunogenic and highly virulent, causing earlier death of infected mice.
Serovars 2, 4, 8, and 15 are moderately virulent, causing polyserositis but not death.
It is important for the virulent causing serious diseases in human and animals [ 19, 20].
Two species, Providencia sneebia and Providencia alcalifaciens, were found to be highly virulent, causing 90-10090-100%linfectednfliesd flies.
H. pylori cagA-positive strains are more virulent causing higher levels of gastric mucosal inflammation in gastritis and gastric cancer [ 32, 33].
Highly virulent strains cause disease in all mink, whereas low-virulence isolates typically cause disease only in mink with the Aleutian coat color (Bloom et al., 1994; Schuierer et al. 1997).
He misses the point: Proposition 8, however virulent its cause, came into effect by virtue of a statewide referendum.
All strains showing haemolytic activity are virulent and cause mortality during the infection tests even with the absence tdh and trh genes.
