Actinobacillus pleuropneumoniae is a primary bacterial pathogen causing swine respiratory disease and has been described in most major swine-producing regions of the world. Preliminary diagnosis of A. pleuropneumoniae is based on clinical signs and gross pneumonic lesions. Isolating and identifying the causative bacteria confirms the diagnosis. Twelve serotypes of A. pleuropneumoniae and a numb...

BACKGROUND Brucellosis is an occupational hazard with those particularly at risk either living in close proximity with animals or handling them. It is a public health problem in developing countries with adverse health implications both for animals and human beings as well as economic implications for individuals and communities. The Objectives were to estimate the seroprevalence of brucellosis...

Surface serology is an important determinant in Spiroplasma systematics. Reciprocal antigen/antibody reactions between spiroplasmas and individual antisera delineate the 38 described groups and species. However, reciprocal serology is impractical for large-scale studies. This report describes a successful, streamlined polyvalent screening approach used to examine isolates from an environmental ...

R. L. CARRASCOI, S. F. BRENIEREZ, O. POCHJ. H. V MIGUEZI. H. SELAES. G ANTEZANA’. P. DESJEUX5 iL Y. CARLIER* 1lBBA. Universidad Mayor de San Andrbs, Casilla 641. La Paz. Bolivia 20RSTOM-lBBA. c/o Embajada de Francia, Casilla 824. La Paz. Bolivia Wniversitd de Strasbourg [France), IBBA. CIO Embajada de Francia, Casilla 824, La Paz, Bolivia AlNLASA, Ministerio de Prevision Social y Salud Publica....

Introduction The year 2006 represented the centenary of the first diagnostic serological test, the Wasserman complement fixation test for the diagnosis of syphilis. In this article I will relate some developments I have observed in the day-to-day running of a diagnostic serology laboratory over the thirty years preceding this centenary. I have assumed some background knowledge and elected to di...

A simplified, indirect radioimmunoassay is described for Escherichia coli, vaccinia virus, and herpesvirus. The antigens were affixed to glass cover slips; thus both the primary and secondary reactions take place on the cover slips, and the unbound antiserum is easily separated from the bound antiserum by rinsing. Rabbit or human immune sera were reacted with the antigens, and the primary immun...

Human red blood corpuscles contain many antigens besides the A and B factors, those of greatest clinical importance being the Rb factors. The first of these factors was discovered by Landsteiner and Wiener (1940), and was so called because a similar factor is present in the corpuscles of the Rhesus monkey. This factor is demonstrable in the corpuscles of 85 per cent, of Europeans an^ white Amer...

BACKGROUND Chagas disease, caused by Trypanosoma cruzi (T. cruzi), is endemic in Latin-America and is emerging in Spain due to immigration. The vertical transmission rate is around 5%. A routine prenatal screening with serology of all pregnant women from endemic areas is recommended to identify infected newborns, allowing early treatment and cure. OBJECTIVE The aim of this study was to estima...

Epidemiological data are often fragmented, partial, and/or ambiguous and unable to yield the desired level of understanding of infectious disease dynamics to adequately inform control measures. Here, we show how the information contained in widely available serology data can be enhanced by integration with less common type-specific data, to improve the understanding of the transmission dynamics...

Abstract Background Brucellosis is a zoonotic disease caused by Brucella spp., namely B. melitensis and abortus in humans. Culturing the gold standard method for diagnosis; however, because slow-growing bacterium, which may delay diagnosis, other faster methods, such as serology, are used. Studies on correlation between antibody titers clinical outcomes limited. Therefore, this study assessed e...