Sentence examples for may be virulent from inspiring English sources

It is noteworthy that examiners have to be familiar with morphological characteristics of Acanthamoeba spp. Currently, it has been shown that both environmental and clinical Acanthamoeba strains/isolates vary in their pathogenicity; they may be virulent, weakly virulent, or nonvirulent [ 4].

Therefore, while a significant proportion of the population may not be virulent, there is always the potential for emergence of more infectious strains.

If divergently oriented ves αβ pair's transcription and subsequent expression are associated with virulence severity, then T2B0_V may be more virulent than L17_V.

Results presented here show that the Mexican patients suffering chronic gastritis we have studied had a high incidence of infection by H. pylori, and suggest that 44% of the H. pylori strains examined may be considered virulent, since they possessed two or three of the virulence markers analyzed.

The community form may be more virulent than the hospital-acquired form, but it is treatable with a wider range of antibiotics and caused only 8percentt of the deaths.

Further analysis indicates that among 16 staphylococcal phages, 44AHJD, P68 and K may be extremely virulent in nature as most of their genes have high translation efficiency.

It is not entirely clear why these diseases have suddenly begun to affect amphibian populations, but some evidence suggests that these diseases may have been spread by humans, or may be more virulent when combined with other environmental factors.

It is also known that the immune pressure imposed by the vaccination may be selecting virulent variant forms of NDV [68].

Recent research indicates that G. vaginalis may be more virulent than other organisms commonly associated with the disease [6].

Drug resistant strains may be less virulent and preferentially lead to disease progression in immune compromised patients, as opposed to immune-competent individuals.

Although it has been usually assumed that virulence is a consequence of within-host replication of the parasite, viral strains may be highly virulent without experiencing large accumulation as a consequence of immunopathological host responses.