An investigation into an E coli outbreak in Angus has been declared over.
A multi-agency incident management team convened following two cases being discovered in Carnoustie has now been stood down.
Health chiefs were looking into a link between the E coli cases in Angus and a national outbreak related to blue cheese, which saw a three-year-old girl lose her life.
The Peter Pan playgroup in the Newton Hall voluntarily closed after a youngster took ill and it is understood that a number of children between the ages of two and primary school age underwent tests.
Pupils at Carlogie Primary School were sent home with letters about E coli and at one point more than 70 youngsters were absent from the 346-pupil primary.
On Wednesday NHS Tayside Consultant in Public Health Medicine Dr Jackie Hyland said the incident had now formally been declared over.
She said: “The Incident Management Team has formally declared the incident as over.
“Investigations have not identified a source of the initial outbreak but rigorous action has been taken to minimise any further potential risk before a playgroup in Angus, which closed on a precautionary basis, reopens.
“We would like to thank parents and the local community for their tremendous support throughout this investigation, which has helped us manage this incident and ensure the prevention of the spread of infection.”
The Angus cases had the same strain as the national outbreak which was associated with Dunsyre Blue cheese.
Few details about the possible source of infection and the numbers of children involved have been released by NHS Tayside.
A total of 22 confirmed cases of E coli associated with Dunsyre Blue have been confirmed.
To date the incident management team has established that in 19 of the cases, the victim had eaten blue cheese prior to becoming ill.
Of these 15 are known to have eaten Dunsyre Blue while the others could not be certain about the brand of blue cheese they had consumed.
Of the confirmed cases, 13 people required hospitalisation and one child died.
