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The study included 102 hospitalized children 0–72 months of age, with symptoms of acute gastroenteritis. One fecal and one nasopharyngeal swab sample were obtained from each child. Samples were screened for sapovirus and viral loads were determined. Sapovirus was detected in 18.6% of fecal samples and in 36.3% of nasopharyngeal swab samples. High viral loads were detected.