نتایج جستجو برای: asymptomatic infections
تعداد نتایج: 325330 فیلتر نتایج به سال:
The 2006 mumps resurgence in the United States raised questions about the appropriate isolation period for people with mumps. To determine the scientific basis for isolation recommendations, we conducted a literature review and considered isolation of virus and virus load in saliva and respiratory secretions as factors that were related to mumps transmission risk. Although mumps virus has been ...
This report describes the epizootiology, clinical presentation, diagnosis and treatment of an outbreak of leptospirosis caused by Leptospira canicola in feedlot calves. The infection appeared to be of high morbidity with a cumulative clinical incidence of 15.6%, cumulative subclinical incidence of 39% and high mortality (8.3%). Clinical disease was diagnosed in 4-8-month-old calves, while subcl...
Thirty-five human influenza A(H5N1) cases were reported in Cambodia during 2013-2014 after emergence of a clade 1.1.2 reassortant virus. We tested 881 villagers and found 2 cases of pauci- or asymptomatic infection. Seroprevalence after emergence of the reassortant strain (0.2%) was lower than the aggregate seroprevalence of 1.3% reported in earlier studies.
Visceral leishmaniasis in the New World, primarily found in northeastern Brazil, is caused by Leishmania chagasi. Compared to India, unusual features of Brazilian disease are the large number of asymptomatic infections versus symptomatic infections, and the apparent change from a zoonotic disease to a partially anthroponotic one. Visceral disease in Africa is caused by L. donovani as in India, ...
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