A flare-up of E.coli had prompted the conclusion two nurseries in East Lothian.
The Pear Tree Nursery in Church Road, Haddington has been connected to 28 instances of the bug. Most cases are accounted for to be gentle – for certain kids in emergency clinic in a steady condition.
Pear Tree’s Meadowpark area in the town was likewise shut as a safety measure after side effects were accounted for.
NHS Lothian said a source had not been found, yet tests were being finished to distinguish the kind of the disease.
The wellbeing board said it had been working with the nursery for around 10 days.
Cases have been restricted to the nursery, families of the youngsters and close contacts.
General wellbeing advisor Graham Mackenzie let BBC Scotland know that gentle stomach disturbs at the Meadowpark area provoked its conclusion, yet this was not affirmed to be E.coli.
Dr Richard Othieno, director of NHS Lothian’s occurrence supervisory crew, said: “We realize that this will be a restless time for the majority of the individuals who are straightforwardly impacted by the disease.
“We have written to guardians and carers of the kids and to staff at the nursery to give the most forward-thinking data and progressing wellbeing counsel.
“NHS Lothian has a hearty observation framework set up to recognize E. coli cases which assisted us with distinguishing these cases early and set up fundamental control measures to forestall additionally spread.
“This flare-up builds up the significance of washing hands consistently, especially prior to eating or planning food, and in the wake of going to the latrine.”
He said NHS Lothian had urged guardians to get their kids far from others until a negative test for E. coli was affirmed.