Antiserum to a purified type R lipopolysaccharide antigen isolated from Neisseria gonorrhoeae was used in a slide agglutination test and compared with conventional carbohydrate utilization and fluorescent antibody tests to confirm the identity of laboratory cultures classified as typical or "atypical" N. gonorrhoeae. Cultures of Corynebacterium vaginalis, N. meningitidis, N. catarrhalis, N. sic...

Leptospirosis is one of the zoonotic diseases caused by different serovars of the species Leptospira interrogans.  The source of infection in humans is usually either direct or indirect contact with the urine of infected animals.  In this study, 400 human blood samples collected from tribal areas of Farsan and Koohrang cities in West Centeral Iran.  The serum samples were analyzed employing Mic...

leptospirosis is one of the zoonotic diseases caused by different serovars of the species leptospira interrogans .  the source of infection in humans is usually either direct or indirect contact with the urine of infected animals.  in this study, 400 human blood samples collected from tribal areas of farsan and koohrang cities in west centeral iran.  the serum samples were analyzed employing mi...

OBJECTIVE To evaluate the repeatability and reproducibility of the serological direct agglutination test (DAT) for visceral leishmaniasis (VL) with aqueous antigen in a multi-centre study in VL-endemic areas in Sudan, Kenya and Nepal. METHODS Repeatability within each centre and reproducibility between the centres' results and an external reference laboratory (Belgium) was assessed on 1596 tr...

A macroscopic agglutination test for detecting leptospiral antibodies in human sera is described. The test utilizes a stained preparation of non-pathogenic leptospires and is performed on the Brewer diagnostic cards used for bovine brucellosis screening. The agglutination of the stained antigen is more easily observed than the current macroscopic slide test using unstained leptospiral antigens....

Encephalitozoon cuniculi has been associated with natural cases of abortion and stillbirth in horses. However, little is known about the prevalence of this parasite in horses. We examined sera from 559 horses from Brazil for antibodies to E. cuniculi using the indirect immunofluorescent antibody (IFA) test and the direct agglutination test (DAT). We found that 79 (14.1%) were positive in the IF...