Development of enzyme-linked immunosorbent assays based on recombinant MSP1a and MSP2 of Anaplasma marginale
Mem. Inst. Oswaldo Cruz
; 100(7): 765-769, Nov. 2005. ilus, tab
Article
in En
| LILACS
| ID: lil-419704
Responsible library:
BR1.1
ABSTRACT
Indirect enzyme-linked immunosorbent assays (ELISAs) based on recombinant MSP1a and MSP2 from a Brazilian isolate of Anaplasma marginale were developed to detect antibodies against this rickettsia in cattle. The high sensitivities (99 percent for both tests) and specificities (100 percent for both tests) were confirmed with sera from cattle positive or negative for A. marginale antibodies, respectively, by immunofluorescent antibody test. By the analysis of 583 sera from cattle of three regions of the state of Pernambuco, Brazil, the agreement between both tests was high, with a kappa index of 0.89. The similar performances of the ELISAs suggest that both tests can be used in epidemiological surveys for detection of antibodies to A. marginale in cattle.
Full text:
1
Index:
LILACS
Main subject:
Bacterial Outer Membrane Proteins
/
Enzyme-Linked Immunosorbent Assay
/
Cattle Diseases
/
Anaplasma marginale
/
Anaplasmosis
/
Antibodies, Bacterial
/
Antigens, Bacterial
Type of study:
Diagnostic_studies
Limits:
Animals
Language:
En
Journal:
Mem. Inst. Oswaldo Cruz
Journal subject:
MEDICINA TROPICAL
/
PARASITOLOGIA
Year:
2005
Type:
Article