Biometry of Trypanosoma vivax found in a calf in the state of Maranhao, Brazil

Blood samples from cattle presenting signs of anemia, lethargy, weakness and general weight loss were collected. Trypanosoma vivax was detected in the blood smears of a calf. This paper reports the first recorded occurrence of T. vivax in the state of Maranhao, northeastern region of Brazil, and provides the biometrical data of the parasite.