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‘‘We are aware that in some suburbs there is a higher-than-usual level of gastroenteritis in school-aged children,’’ Public Health South medical officer of health Keith Reid said.
‘‘This also reflects that the virus is circulating in the community at present. While norovirus outbreaks occur much more frequently in the winter they do occur all year round.’’
There were three norovirus outbreaks in resthomes in November, Dr Reid said.
The commonest viral cause of gastroenteritis is norovirus. Symptoms include diarrhoea, vomiting, nausea, abdominal and muscle pain and fever.