ABSTRACT
Os cracídeos são Galliformes silvestres das Américas. Com o objetivo de investigar a presença de anticorpos contra vírus de galinhas em cracídeos, foram coletadas 51 amostras de soro de 10 diferentes espécies dessas aves. Esses animais eram mantidos em criatórios conservacionistas e zoológicos nos Municípios de Santa Maria, Soledade, Passo Fundo, Sapucaia, Gravataí, Viamão e Três Coroas, Estado do Rio Grande do Sul, Brasil. Anticorpos neutralizantes foram detectados em 5,9 por cento (3/51) do total de amostras testadas contra o vírus da bronquite infecciosa das galinhas, 15,7 por cento (8/51) contra o reovírus aviário e 35,3 por cento (18/51) contra o vírus da doença infecciosa da bolsa. Todas as amostras foram negativas para o vírus da bouba aviária no teste de IDGA. A detecção de anticorpos para vírus de aves comerciais sugere que os cracídeos podem ser susceptíveis à infecção por esses vírus.
The cracids are wild Galliformes native from the Americas. Fifty one serum samples were collected from individuals of 10 different species of cracids in order to obtain information regarding to the antibody status of different viruses. These birds were kept in shelters and zoos localized in Santa Maria, Soledade, Passo Fundo, Sapucaia, Gravataí, Viamão and Três Coroas counties, in the Rio Grande do Sul State, Brazil. Neutralizing antibodies were detected in the individuals serum from different species specific referring to infectious bronchitis virus in 5.9 percent (3/51) of the samples, to avian reovirus in 15.7 percent (8/51) and, to infectious bursal disease virus in 35.3 percent (18/51). All samples were negative for fowlpox virus, as measured by IDGA test. The detection of commercial poultry viruses antibodies suggests that cracids could be susceptible to infection by those viruses.
ABSTRACT
The integrated cell culture-PCR (ICC-PCR) method has been suggested as an improved method for detection of viruses in water environments. We tested 57 source waters including finished water samples in Gyeonggi-do for enteric viral contamination using total culturable virus assay (TCVA) using BGMK cells and ICC-PCR. Nineteen of the 57 source water samples (33.3%) exhibited the cytopathic effect (CPE) on BGMK cells and no finished water did exhibited CPE. Nineteen samples (33.3%) of the 57 were positive for reoviruses. For the enteroviruses, only 3 samples (5.3%) of the 57 samples showed positive results. By using ICC-PCR method, 202 flasks from source water samples were positive for enteroviruses and reoviruses. Three samples from source water were positive for both viruses. However, any flasks tested was not co-infected with two types of viruses. While the enteric viral frequencies in TCVA and ICC-PCR were similar, the viral frequency for reoviruses at first passage in two type of method was higher in ICC-PCR (94.7%) than TCVA (56.9%).