| occurrence of antibodies to toxoplasma gondii in mules and donkeys in the northeast of brazil. | the aim of the present study was to investigate antibodies to toxoplasma gondii in the serum of mules and donkeys bred in the northeast of brazil. in total, 483 samples were used (395 mules and 88 donkeys) from 4 states (pernambuco, rio grande do norte, paraíba, and sergipe). the indirect immunofluorescence reaction (ifi) technique was used to investigate antibodies to t. gondii with a cut-off point of 64. positive frequencies of 23.8% and 43.2% were recorded for mules and donkeys, respectively. ... | 2013 | 22924911 |