نتایج جستجو برای: endemic genotypes
تعداد نتایج: 97131 فیلتر نتایج به سال:
black leg has been reported in a variety of animals, but is ofthe most importance in cattle and sheep. a20 days old holsteindairy calf was examined because of anorexia and lameness from2 days ago. the calf was depressed, tachypneic, tachycardic, andhad a body temperature of 38.5ºc. both hind limbs proximal tothe tarsal joint were markedly swollen, firm and painful. nocrepitation was noted on pa...
the objectives of the present study were to investigate the prevalence of histologic thyroids lesions and the respective thyroid hormones changes of ewes in an endemic goiter region and to find out any impact of this condition on the fetal thyroid structures and serum thyroid hormones. in the present study a total number of 100 pregnant ewes and their fetuses slaughtered at slaughterhouse were ...
BACKGROUND Polymorphism of the Duffy Antigen Receptor for Chemokines (DARC) is associated with susceptibility to and the severity of Plasmodium vivax malaria in humans. P. vivax uses DARC to invade erythrocytes. Individuals lacking DARC are 'resistant' to P. vivax erythrocytic infection. However, susceptibility to P. vivax in DARC+ individuals is reported to vary between specific DARC genotypes...
The Northeast region is the location of most cases of acute hepatitis A virus (HAV) in Brazil. In the present study, the genotypes of HAV strains from Pernambuco State, one of most populous states in the Northeast region, were characterized. Blood samples positive for anti-HAV IgM from 145 individuals (mean age = 29.1 years), collected during 2002 and 2003, were submitted to nested RT-PCR for a...
Efforts to control the spread of Buruli ulcer--an emerging ulcerative skin infection caused by Mycobacterium ulcerans--have been hampered by our poor understanding of reservoirs and transmission. To help address this issue, we compared whole genomes from 18 clinical M. ulcerans isolates from a 30 km2 region within the Asante Akim North District, Ashanti region, Ghana, with 15 other M. ulcerans ...
BACKGROUND The spread of PRRSV among pig herds has been investigated experimentally, but few observational studies have investigated this subject. Because PRRSV is endemic and live modified vaccines are used in Ontario, the spatial and temporal distributions of 6 PRRSV genotypes were investigated in the province during the period from 2004-2007. The purpose was to find evidence of spread of PRR...
BACKGROUND Trachoma, caused by Chlamydia trachomatis (Ct), is the leading infectious cause of blindness. Sequence-based analysis of the multiple strains typically present in endemic communities may be informative for epidemiology, transmission, response to treatment, and understanding the host response. METHODS Conjunctival and nasal samples from a Gambian community were evaluated before and ...
Background: Hantavirus causes hemorrhagic fever with renal syndrome, thus posing a major threat to human health in Jiangxi Province, China. Both Hantaan virus (HTNV) and Seoul (SEOV) have been found be endemic the province. Methods: Rodents were trapped from Gaoan Anyi Tonggu counties Province 2020–2021. specific antibodies blood RNA lung samples captured mammals detected analyzed. Results: A t...
The occurrence of a koro endemic among elementary-school children is reported, the nature of the occurrence is elaborated, and the possible cause for the endemic is discussed. The episode occurred within a period of three days in Fuhu village in Guangdong Province in southern China in late May 2004. It involved 64 male students. Familiarity with koro in the community, tension among schoolchildr...
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