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A two-component regulatory system playing a critical role in plant pathogens and endosymbionts is present in Brucella abortus and controls cell invasion and virulence
(Blackwell Science, 1998-04-08)
Two mutants showing increased sensitivity to polycations and surfactants were obtained by transposon mutagenesis of virulent Brucella abortus 2308 Nal(r). These mutants showed no obvious in vitro growth defects and produced ...
Bovine Leukaemia‐virus infection in Costa Rica
(Blackwell Wissenschaft, 1995)
The geographical distribution of bovine leukaemia‐virus (BLV)‐infected herds in Costa Rica and the isolation of BLV from cases of enzootic bovine leukosis are presented. It was found that BLV is prevalent throughout the ...
Comparison of Agar Gel Immunodiffusion Test, Enzyme-linked Immunosorbent Assay and Western Blotting for the Detection of BLV Antibodies
(Blackwell, 1999-10)
An indirect enzyme-linked immunosorbent assay (ELISA) for the diagnosis of bovine leukaemia virus (BLV) infection was developed and compared with the agar gel immunodiffusion test (AGIDT). Western blotting (WB) was used ...
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 ...
Rotavirus and coronavirus outbreak: etiology of annual diarrhea in Costa Rican children
(Universidad de Costa Rica, 1997)
In Costa Rica, an annual outbreak of infant diarrheal disease (December and January) was reported since
1976, and rotavirus was incriminated 1ater as the main etiological agent (1976-1981). Apparently the disease has not ...