Between May14 and 18, 2001, there was an outbreak of acute gastroenteritis involving 45 school children out of a total of 107 (aged 11-12 years) attending a 3-day school trip. The epidemic curve characterized by a rapid onset and decline with a single peak incidence over a 5-day period resembled the pattern typical of a food-borne gastroenteritis outbreak. Epidemiological and virological investigations concluded, however, that this outbreak was caused by a single strain of serotype G2 group A rotavirus spreading to schoolmates from the primary case-pupil who had already been ill at the start of the trip.
View Article and Find Full Text PDFObjective: To ascertain the meaning and the influence of daily physical activity on QOL among the elderly, we surveyed their lifestyle exercise habits, cross-sectionally and longitudinally.
Methods: The subjects of this study were all residents living in a certain suburb of Nagoya-city, aged 63, 68, 73, 78, 83 years of age. They answered questionnaires regarding their exercise, physical activity, and QOL with six categories.