Queenstown's public health watchdog is hosing down social media claims linking stomach bugs with the resort's water supply.
Fernhill resident Simon Grindell took to social media on Saturday night, alleging test results revealed he had been ''the unlucky recipient of a notifiable infectious disease'' following a week ''of hell''.
He said he suffered campylobacter-like symptoms, including fever, diarrhoea, vomiting, headaches and drowsiness, and a doctor was ''pretty adamant'' the source was contaminated water.
By yesterday afternoon the post had 102 comments and, of those, eight people had complained of stomach bugs in the past month.
However, when contacted by the Otago Daily Times for comment on Monday, Mr Grindell declined, on the basis he was unsure if his illness was caused by the water ''or something else''.
Queenstown Lakes District Council spokeswoman Michele Poole said the council constantly tested the resort's water supply and there was no evidence of a breach, or issues with chlorination levels.
Public Health South Medical Officer of Health Dr Derek Bell told the ODT yesterday despite the number of comments on the post, ''multiple anecdotes do not equal evidence''.
There was, at this point, nothing to suggest there had been an increase in water-borne diseases in Wakatipu. However, it was a ''fairly blunt instrument''.
''It requires people to attend doctors and be tested and all of that sort of thing [to accurately measure].
''When people have notifiable diseases like all of the gastro-intestinal bugs ... if they are a high-risk person - a food handler, child care worker or a health care worker - we actually track them down and interview them over the phone, looking at where they might have got it and how they can prevent spreading it.''
Those defined as ''low risk'' were sent a questionnaire they were asked to fill out and return to provide the information.
Dr Bell said if the illness was attributed to the water supply, there would be a ''flood'' of people presenting at the same time.
''What is happening at the moment is that we're getting a grumbling picture, which more usually represents person-to-person spread, rather than what we call a point source [like water].''
There would also be increased absenteeism at schools but schools contacted by the ODT yesterday said that had not occurred.
''Spring is a time when you do see a bit of an increase in tummy upsets, but often what is ... out on the street doesn't necessarily translate to ... information at a medical level,'' Dr Bell said.
''All of that adds up to a suggestion that there isn't a problem at the moment, otherwise we'd expect to know about it.''
