The incidence of astrovirus infection in children less than 10 years of age
with gastroenteritis ire the city of Zaragoza, Spain, was analysed during
a 12- month period. A total of 718 stool samples obtained from 534 children
were examined. In 401 samples no routinely searched for pathogenic organis
m was detected; these specimens were then tested for the presence of astrov
irus antigens. Astrovirus was detected in the samples of 15 (5.5%) patients
, a detection rate similar to that recognised for Yersinia enterocolitica a
nd Cryptosporidium spp. All children with confirmed astrovirus infection ha
d diarrhoea (median duration, 9 days), 11 experienced loss of appetite, 5 v
omiting, and 4 fever. The incidence of astrovirus infection reported here i
ndicates that Spanish children suffering from gastroenteritis should be rou
tinely screened for the presence of astrovirus.