نتایج جستجو برای: sero prevalence
تعداد نتایج: 280366 فیلتر نتایج به سال:
BACKGROUND Malaria and human immunodeficiency virus (HIV) are two major infections with enormous public health consequence. Together, they are endemic in many developing countries with anaemia being the most frequent haematological consequence of the infections. OBJECTIVES To determine the prevalence of malaria and HIV co-infection as well as anaemia among selected patients from three health-...
BACKGROUND Untreated maternal syphilis is strongly associated with adverse birth outcomes, especially in women with high titre syphilis. The WHO recommends routine serological screening in pregnancy. Some workers have advised a reappraisal of this practice, having demonstrated low sero-prevalence in their antenatal population. In view of this, the aim of this study was to determine the seroprev...
Abstract Background The seasonal human coronaviruses (HCoV) NL63, 229E, OC43 and HKU1, are endemic throughout the world, yet majority of HCoV infections remain undiagnosed. Serology can reliably identify individuals previously infected with HCoVs. Methods In a cross-sectional seroprevalence study, 2,389 serum samples were collected from children adults requiring hospital admission in France 202...
This study was conducted at the Agricultural Research Station, Hada El-Sham, King Abdulaziz University during 2006 and 2007 seasons. Four canola varieties, Callypso, Pactole, Sero-4 and Sero-6 varieties were tested under four nitrogen fertilizer rates (0.00, 92,138 and 184 kg N/ha) to determine the effect of nitrogen fertilizer on the canola (Brassica napus L.) seed yield, yield components and ...
Serum samples from 101 stranded or bycatch cetaceans from British waters were screened for Toxoplasma gondii-specific antibodies using the Sabin Feldman Dye Test. Relatively high seropositivity was recorded in short-beaked Delphinus delphis and this study presents the first documented case of Toxoplasma in a humpback whale Megaptera novaeangliae.
the term “serological epidemiology” is based to describe a method which has unique applications in comparing the immunologic status and health experiences of various populations, especially among populations for which morbidity data and vital statistics are scanty or completely lacking, or for inaccessible areas where the collection of serum is made with difficulty. serologic and hematological ...
a total of 332 birds including 149 sparrows, 147 doves and 36 pigeons were examined for toxoplasma infection by both direct agglutination for detecting antibodies to toxoplasma and direct parasitological test to detect the cyst of toxoplasma in the brain of birds. the toxoplasma sero-positive rate (spr) in the examined birds was 10.5 percent (27 cases) with titers of 1:40 or higher and spr in e...
BACKGROUND Toxoplasmosis is among the most widespread and prevalent zoonosis in the world. People can become infected through ingestion of oocysts shed by felids or of tissue cysts contained in meat from infected animals. Acute infection can result in a wide spectrum of consequences, including flu-like illness and retinitis, as well as congenital infection in pregnant women. Severe disease can ...
INTRODUCTION In South Africa where the prevalence of HIV infection is very high, 4th generation HIV antibody/p24 antigen combo immunoassays are the tests of choice for laboratory based screening. Testing is usually performed in clinical pathology laboratories on automated analysers. To investigate the cause of false positive results on 4th generation HIV testing platforms in public sector labor...
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