Institution: | 1.Laboratory of Comparative and Environmental Virology, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil ;2.Laboratory of Water and Food Microbiology, Central Laboratory of Rio Grande do Sul, State Health Surveillance Center, Porto Alegre, RS, Brazil ;3.Epidemiological Surveillance of Food and Waterborne Disease, State Health Surveillance Center, Porto Alegre, RS, Brazil ; |