Sentence examples for variation of virus from inspiring English sources

When secondary cases of nA/H1N1v were documented in France, we decided to implement rapid detection of nA/H1N1v in the POC laboratories to provide rapid diagnosis and to study levels and variation of virus circulation.

One study has shown that the success of Nipah virus isolation from Pteropus spp. bats depended on seasonal factors, which was interpreted as evidence for season-dependent variation of virus concentration or prevalence (24 ).

We adopted influenza associated excess risk as a measurement for the seasonal effects of influenza, which allows us to evaluate the changes in mortality risks attributable to influenza around the year independent of the seasonal variations of virus activity.

For the segmented nature of the influenza genome, the generation of a reassortant virus is an important mechanism of the variation of influenza virus.

The size of epidemics and their relative effect reflect interplay between antigenic variation of the virus, protective immunity in the population, and relative virulence of the viruses.

Inactivated virus vaccines are used to control FMD, but their efficacy is limited by the antigenic variation of the virus [ 11].

The treatment of HIV remains a serious challenge due to the high genetic variation of the virus and associated toxic side effects of the antiviral drugs.

In addition, there was no found significantly variation of the virus concentrations on a single study site (P > 0.05 by Student's test) (Table 1).

We aimed to explore the association between hospital admissions for influenza and/or pneumonia (IP) and acute myocardial infarction (AMI) or ischaemic heart disease (IHD) in Queensland, Australia, taking into account temporal and spatial variation of influenza virus type and subtype in 2007, 2008 and 2009.

Hence we used CMV isolates representing the genetic variation of this virus: two well characterised isolates, Fny-CMV and LS-CMV, representing subgroups I and II of CMV isolates, and a field isolate from Diplotaxis.

The reason may be the variation of different virus isolates.