Nilgai Antelope in Northern Mexico as a Possible Carrier for Cattle Fever Ticks and Babesia bovis and Babesia bigemina

Of 20 blood samples from nilgais from Mexico, five were polymerase chain reaction-positive for Babesia bigemina and one for Babesia bovis. Positive samples had the expected 170 (B. bigemina) and 291 (B. bovis) base pairs and were identical to Gen- Bank B. bigemina accession S45366 and B. bovis M38218.