[1] Minist Hlth, Evandro Chagas Inst, Sect Virol, Ananindeua, Para, Brazil
[2] Zoonosis Control Ctr, Belem, Para, Brazil
[3] Fed Rural Univ Amazon, Belem, Para, Brazil
[4] Minist Hlth, Evandro Chagas Inst, Sect Parasitol, Ananindeua, Para, Brazil
[5] Katholieke Univ Leuven, Lab Viral Cell Biol & Therapeut, Leuven, Belgium