Virulence factor activity relationships for hepatitis E and Cryptosporidium
نویسندگان
چکیده
منابع مشابه
Virulence factor-activity relationships: workshop summary.
The concept or notion of virulence factor-activity relationships (VFAR) is an approach for identifying an analogous process to the use of qualitative structure-activity relationships (QSAR) for identifying new microbial contaminants. In QSAR, it is hypothesized that, for new chemical contaminants, their potential acute or chronic toxicity may be reasonably estimated on the basis of structural r...
متن کاملCryptosporidium pathogenicity and virulence.
Cryptosporidium is a protozoan parasite of medical and veterinary importance that causes gastroenteritis in a variety of vertebrate hosts. Several studies have reported different degrees of pathogenicity and virulence among Cryptosporidium species and isolates of the same species as well as evidence of variation in host susceptibility to infection. The identification and validation of Cryptospo...
متن کاملAntileptospiral activity of serum. II. Leptospiral virulence factor.
A definite relationship exists between the resistance of leptospires to the antibody-complement system and virulence. Leptospires capable of producing either lethal or renal infections in hamsters or guinea pigs were resistant to the leptospiricidal action of antibody and complement. Avirulent leptospires, in contrast to the virulent organisms, were rapidly immobilized and killed by these serum...
متن کاملAcid phosphatase activity in Coxiella burnetii: a possible virulence factor.
High-speed supernatant fluids derived from sonicated Coxiella burnetii contained considerable acid phosphatase activity when assayed by using 4-methylumbelliferylphosphate; they also contained a factor that blocked superoxide anion production by human neutrophils stimulated with formyl-Met-Leu-Phe. The pH optimum of the enzyme was approximately 5.0. The level of phosphatase activity detected in...
متن کاملHepatitis E Virus and Serum Level Aminotransferases in Blood Donors
Background: Hepatitis E virus (HEV) infection is a self-limiting viral infection that can lead to severe complications and death. In different regions the epidemiology of this infection varies. In this study we evaluated the seroepidemiology of hepatitis E infection in Jahrom, a city in southern Iran. Methods: This was a cross-sectional descriptive study of serum samples from 477 subjects, i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Water and Health
سال: 2009
ISSN: 1477-8920,1996-7829
DOI: 10.2166/wh.2009.044