نتایج جستجو برای: viral infection
تعداد نتایج: 555358 فیلتر نتایج به سال:
aim : this study aims to employ random effect model to evaluate prognostic factors of hepatitis c. background : in recent years, hepatitis c virus (hcv) infection has been a major cause of liver diseases worldwide and represents a major public health problem. evaluation of risk factors and a community intervention in order to decrease the problem is one of the solutions which help protect peopl...
to construct a semen bank, the collection of donated semen has to be done and an important concern is the safety of collected semen. the contamination is a big problem. basically, the infectious pathogens can exist within donated semen, hence, a good donor screening is very important. although viruses have an indirect role in sperm quality, but the evidence in banked semen is presently lack. th...
In this paper, we introduce fractional-order into a model of HIV-1 infection of CD4^+ T--cells. We study the effect of the changing the average number of viral particles $N$ with different sets of initial conditions on the dynamics of the presented model. The nonstandard finite difference (NSFD) scheme is implemented to study the dynamic behaviors in the fractional--order HIV-1 ...
Background: Acute respiratory tract infections, both bacterial and viral, cause 4.5 million childhood deaths worldwide, most of which occur in developing countries. Parainfluenza viruses, of the paramyxoviridae family, are among the common causes of acute respiratory infections, giving rise to 30% of respiratory infections in children before school age. The four parainfluenza viruses that cause...
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