| identification and type distribution of astroviruses among children with gastroenteritis in colombia and venezuela. | astrovirus infections were detected by enzyme immunoassay in 12 (5%) of 251 stool samples from children with gastroenteritis from bogota, colombia. in addition, astroviruses were detected by reverse transcription-pcr in 3 (10%) of 29 stool samples negative for other enteric pathogens collected in caracas, venezuela, from children with gastroenteritis. astrovirus type 1 was the most frequently detected virus. | 2000 | 10970410 |
| presence of viral proteins in drinkable water--sufficient condition to consider water a vector of viral transmission? | in order to determine the role of water as a possible vector for transmission of the most prevalent enteric viruses affecting infantile populations, 226 water samples were collected from facatativa's (colombian municipality located 30km away from bogotá) water works in the years 2000, 2002, and 2005. the samples were clarified and virus was concentrated by filtering and ultrafiltering techniques. the presence of viral protein (vp) was assessed by enzyme immunoassay method (eia) and viral rna pre ... | 2007 | 17084879 |