1. Laboratory of Products, Microbiology Dept.; National Inst. of Quality Control in Health; Oswaldo Cruz Foundation; Av. Brasil, 4365 Manguinhos Rio de Janeiro - RJ Brazil CEP 21040 -900
2. Laboratory of Comparative Virology; Oswaldo Cruz Inst; Oswaldo Cruz Foundation; Av. Brasil, 4365 Manguinhos Rio de Janeiro - RJ Brazil CEP 21040 -900