| seroepidemiologic studies on babesia equi and babesia caballi infections in brazil. | horses from six stud farms representing the most frequent types of horse breeding in brazil were tested for babesia antibodies by the ifa test. the farms are located at the tropic of capricorn at an altitude of 472-715 m where temperatures below 0 degrees c may occur. horses of conventional stud farms were infested with dermacentor nitens, amblyomma cajennense, and boophilus microplus. infestation with bo. microplus was associated with direct or indirect contact of horses with cattle, and was no ... | 1999 | 10447188 |
| detection of natural infection of boophilus microplus with babesia equi and babesia caballi in brazilian horses using nested polymerase chain reaction. | the potential role of boophilus microplus as a natural tick vector of babesia equi and babesia caballi in brazilian horses was assessed using nested polymerase chain reaction (pcr)-based marker assay. b. equi merozoite-specific 218bp gene fragment was detected in almost 96% of horse blood samples, and 45.3-62.5% of females, eggs, larvae, and nymphs of b. microplus collected from 47 horses at campo grande in the state of matto grosso, brazil. except for the partially-fed female ticks, the b. caba ... | 2002 | 12163246 |
| prevalence of equine piroplasmosis and its association with tick infestation in the state of são paulo, brazil. | serum samples were collected from 582 horses from 40 stud farms in the state of são paulo and tick (acari: ixodidae) infestations were evaluated on them. serum samples were subjected to the complement fixation test (cft) and a competitive inhibition elisa (celisa) for babesia caballi and theileria equi. logistic regression analyses were performed to construct multivariate models that could explain the dependent variable (horses positive for b. caballi or t. equi) as a function of the independent ... | 2009 | 20040201 |