نتایج جستجو برای: epidemiological investigation
تعداد نتایج: 392474 فیلتر نتایج به سال:
Epidemiology is the study of disease in populations. Veterinarians and others involved in the preventive medicine and public health professions use epidemiological methods for disease surveillance, outbreak investigation, and observational studies to identify risk factors of zoonotic disease in both human and animal populations. Knowledge of these risk factors is used to direct further research...
Traditional modes of investigating influenza nosocomial transmission have entailed a combination of confirmatory molecular diagnostic testing and epidemiological investigation. Common hospital-acquired infections like influenza require a discerning ability to distinguish between viral isolates to accurately identify patient transmission chains. We assessed whether influenza hemagglutinin sequen...
Background: On tuberculosis control standpoint, the treatment of children with TB is not considered a priority as they rarely transmit the disease and contribute little to the maintenance of the tuberculosis epidemic. Therefor this study conducted to describe pediatric TB cases, and to identify pattern of risk factors in non-endemic communities Materials and Methods: The present cross- sectiona...
a clinical and epidemiological comparison of the cutaneous leishmaniasis was carried out among 100 victims of cutaneous leishmaniasis who were living in the villages of isfahan area, and 100 other patients of the lesions have been determined and analyzed. comparison of patients of the city with that of neighboring villages shows that both type of cutaneous leishmaniasis are prevalent in isfahan...
this investigation was performed on 1056 stool samples collected from isfahan area (with high intensity of infection) and dasht-mishan area of khuzestan. as indicated in tables 1, 2 and 3 the results of kato thick-smear technique is comparable to those conventional methods of formalin-ether and flotation methods, plus low cost, simplicity and practicability of kato's thick-smear. for ascaris eg...
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