نتایج جستجو برای: seropositive
تعداد نتایج: 7997 فیلتر نتایج به سال:
Acquisition and loss rates and estimates of duration of oral and vaginal Candida species colonization and candidiasis were examined among 868 human immunodeficiency virus (HIV)-seropositive and 437 at-risk HIV-seronegative women monitored prospectively during 1993-1999. Colonization and candidiasis acquisition rates, both oral and vaginal, were significantly higher among HIV-seropositive women;...
Major implications on a country's economy, food source, and public health. With recent concern over the highly pathogenic avian influenza outbreaks around the world, government agencies are carefully monitoring and inspecting live bird markets, commercial flocks, and migratory bird populations. However, there remains limited surveillance of non-commercial poultry. Therefore, a cross-sectional s...
BACKGROUND Brucellosis and coxiellosis are known to be endemic in ruminant populations throughout Afghanistan, but information about their prevalence and factors that affect prevalence in householders and livestock under diverse husbandry systems and pastoral settings is sparse. METHODS/PRINCIPAL FINDINGS We conducted a cross-sectional survey to investigate the seroprevalence of brucellosis a...
We identified risk factors associated with increased yearly incidence rates of leprosy in five island populations. Age, sex, household size and Mycobacterium leprae-specific antibodies as well as contact factors were studied. Of 94 index patients (patients diagnosed in 2000), 43 (46%) were classified as multibacillary (MB), 17 (19%) were seropositive for PGL-1 [corrected] antibodies and 6 (7%) ...
To determine the prevalence of human herpesvirus 8 (HHV-8) infection, the rate of HHV-8 seroconversion, and the presence of serum HHV-8 DNA after bone marrow transplantation (BMT), we evaluated sera from 187 Italian BMT donor-recipient pairs. Antibodies to lytic and latent HHV-8 antigens were detected by immunofluorescence. Sera of donor-recipient pairs who seroconverted were examined by real-t...
OBJECTIVE To evaluate herd-level risk factors for seropositive status of cattle to 1 or more bluetongue viruses. ANIMALS 110 herds of cattle in Nebraska, North Dakota, and South Dakota. PROCEDURE Blood samples were collected before and after the vector season. Samples were tested for antibodies against bluetongue virus by use of a commercially available competitive ELISA. Factors evaluated ...
BACKGROUND Toxoplasma gondii is a widespread occurring parasite infecting warm-blooded animals, including pigs and humans. The aims of this study were to estimate the prevalence of anti-T. gondii antibodies and to evaluate risk factors for T. gondii seropositivity in breeding pigs raised in Estonia. Sera from 382 pigs were tested with a commercial direct agglutination test, using a cut-off tite...
INTRODUCTION We investigated the clinical, electrophysiological and neural autoantibody characteristics in cramp-fasciculation syndrome (CFS) patients. METHODS We reviewed Mayo Clinic records from 2000 to 2011 to identify clinically defined CFS patients who underwent neural autoantibody testing. Stored sera of patients who tested positive for antibodies to voltage-gated potassium channel comp...
OBJECTIVES To determine the relationship of HIV infection in pregnant women to sexual network size and other risk factors. DESIGN Case-control study of women attending the public maternity hospital in Lima, Peru. METHODS We interviewed 75 HIV-seropositive women, 41 of their most recent male partners, and two control groups totaling 137 uninfected pregnant women and 70 of their most recent m...
A cohort of 181 patients with hemophilia A (149) and hemophilia B (32) cared for at the Hemophilia Center of Western Pennsylvania was followed to determine human immunodeficiency virus (HIV) seroprevalence, seroconversion rate, and clinical and immunologic correlates of HIV infection. By December 1986, 82 (45%) were HIV seropositive, and of these, ten (12%) had developed AIDS, 28 (34%) had symp...
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