| bovine trypanosomiasis an emerging disease in maranhão state-brazil. | in south american countries, bovine trypanosomiasis is caused mainly by trypanosoma vivax. among the infected animals, bovines are considered more susceptible, and this susceptibility varies among breeds. to determine the occurrence of t. vivax in maranhão state, brazil, a total of 559 cattle blood samples were collected for molecular and parasitological studies. on são luís island, no parasites were observed in the parasitological exam; however, with the polymerase chain reaction (pcr) method, ... | 2011 | 21254930 |