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Characterization of Brucella abortus and Brucella melitensis native haptens as outer membrane O-type polysaccharides independent from the smooth lipopolysaccharide
(American Society for Microbiology, 1996)
Brucella native haptens (NHs) extracted with hot water from smooth (S)- type B. abortus and B. melitensis were purified to high levels of serological activity and compared with the polysaccharide obtained by acid hydrolysis ...
Effect of adjuvants on the antibody response of mice to Bothrops asper (Terciopelo) snake venom
(Brazilian Journal of Medical and Biological Research, 1996)
The adjuvant properties of several immunostimulant molecules on the murine antibody response to Bothrops asper snake venom were evaluated. Mice receiving venom together with either sodium alginate, calcium alginate, aluminum ...
Serological survey of small mammals in a vesicular stomatitis virus enzootic area
(Wildlife Disease Association, 1996-04-01)
Small nmamnnmals were captured in a Costa Rican dairy farm located ium a vesicular
stouiiatitis virus (VSV) enzootic focus, in order to determine which species were naturally infected
by this virus. Monthly captures were ...
Effect of management and host factors on seroprevalence of bovine anaplasmosis and babesiosis in Costa Rica
(Elsevier B.V, 1993-11-16)
The relationships between the seroprevalences of Anaplasma rnarginale, Babesia bige mina, Babesia bovis and some selected factors were assessed. Factors studied were age,
breed, herd size, farm size, rotational grazing ...
Epidemiology of bovine anaplasmosis and babesiosis in Costa Rica
(Elsevier, 1994)
A serum bank created by the National Brucellosis Control Program during 1991 con sisted of approximately 4000 sera collected from farms in each of the seven provinces in
Costa Rica. Sera were used to determine the ...
Morfologia externa de Triatoma ryckmani Zeledón & Ponce, 1972 vista através da microscopia eletrônica de Varredura
(Memórias do Instituto Oswaldo Cruz, 1996-12)
External Morphology of Triatoma rickmani Zeledón & Ponce, 1972 by Scanning Electron Mi croscopy - A male of Triatoma ryckmani Zeledón & Ponce, 1972, was studied by scanning electron
microscopy. Only few specimens of this ...
Genetic variability among populations of the sand fly Lutzomyia (Lutzomyia) Longipalpis (Diptera: psychodidae) from Central America
(Entomological Society of America., 1998-03)
Eleven Central American populations of Lutzomyia longipalpis (Lutz & Neiva) were analyzed for genetic variation at 16 enzyme loci. The aim was to study the genetic structure among populations within this region and to ...
Four cases of equine bone lesions caused by Pythium insidiosum
(BEVA, 1990)
PYTHIOSIS is usually a granulomatous disease of skin and subcutis
in horses (Austwick and Copland 1974; Miller and Campbell 1982;
Mendoza and Alfaro 1986), and cattle (Miller, Bruce and Archer
1985), of skin and intestinal ...
In search of a bacterial spedes definition
(Universidad de Costa Rica., 1997)
The bacterial species concept was examined within the framework of plant and animal associated a-2 proteobacteria, taking into consideration the phylogenetic, taxonomic and biological approaches as well as the microbiologists' ...
Parásitos intestinales del tepezcuinte, Agouti paca (Rodentia: Dasyproctidae) en Costa Rica
(Universidad de Costa Rica., 1990)
In a sample of 23 breeding places of pacas (Agouti paca) in Costa Rica, the following parasites were found: Eimeria agoutii, Balantidium coli, Capillaria sp., Trichuris sp., Taenia sp., Strongyloides sp., and members of ...