Title |
Seroprevalence and risk factors for cattle anaplasmosis, babesiosis, and trypanosomiasis in a Brazilian semiarid region
|
---|---|
Published in |
Revista Brasileira de Parasitologia Veterinária, June 2013
|
DOI | 10.1590/s1984-29612013005000022 |
Pubmed ID | |
Authors |
Valéria Medeiros de Mendonça Costa, Múcio Flávio Barbosa Ribeiro, Amélia Lizziane Leite Duarte, Julia Marry Mangueira, André Flávio Almeida Pessoa, Sergio Santos Azevedo, Antonio Thadeu Medeiros de Barros, Franklin Riet-Correa, Marcelo Bahia Labruna |
Abstract |
The seroprevalence of Anaplasma marginale, Babesia bigemina, Babesia bovis and Trypanosoma vivax and the risk factors for these infections were investigated in 509 cows on 37 farms in the semiarid region of Paraíba, northeastern Brazil. Cow serum samples were tested by means of immunofluorescence assay (IFA) against each specific antigen. The mean seroprevalence values per farm were 15.0% (range: 0-75%) for A. marginale, 9.5% (range: 0-40%) for B. bigemina and 26.9% (range: 0-73.7%) for B. bovis. All cows tested negative for T. vivax. Higher prevalence for A. marginale was significantly associated with less frequent acaricide spraying per year and with higher use of injectable antihelminthics. Presence of cows positive for B. bigemina was significantly associated with acaricide use and with presence of horse flies on the farm. Both occurrence and higher prevalence of B. bovis were significantly associated with recent observations of ticks on cattle. Overall, the present results indicate that the region investigated is an enzootically unstable area for A. marginale, B. bigemina and B. bovis, since most animals were seronegative to at least one agent. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Practitioners (doctors, other healthcare professionals) | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Colombia | 1 | 1% |
Brazil | 1 | 1% |
Unknown | 83 | 98% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Master | 19 | 22% |
Researcher | 8 | 9% |
Student > Bachelor | 8 | 9% |
Student > Doctoral Student | 7 | 8% |
Student > Postgraduate | 7 | 8% |
Other | 19 | 22% |
Unknown | 17 | 20% |
Readers by discipline | Count | As % |
---|---|---|
Veterinary Science and Veterinary Medicine | 31 | 36% |
Agricultural and Biological Sciences | 17 | 20% |
Immunology and Microbiology | 5 | 6% |
Biochemistry, Genetics and Molecular Biology | 4 | 5% |
Medicine and Dentistry | 2 | 2% |
Other | 6 | 7% |
Unknown | 20 | 24% |