Haleness bosses have issued a warning after students at three nursery schools in Stoke-On-Trent were struck by by the bug.
Shigellosis infection is a highly contagious diarrhoea bring oned by Shigella bacteria.
The bacteria, which causes dysentery, can be passed in faeces or spread from an infected child to contaminate food or water, or directly to another person.
It is most qualified to spread if people don’t wash their hands after going to the toilette.
Reports say more than 80 people have so far been acted upon.
Health officials have said schools in the affected areas are employing ‘enhanced cleaning’ of communal areas.
Letters have also been sent to old men of children at the school to let them know ‘supervised hand washing’ has also been introduced in to stem the spread of the disease.
NHS Choices said: ”Shigella bacteria can infect any food that has been washed in contaminated water.
“Symptoms typically exhibit within seven days of eating contaminated food and last for up to a week.
“An infection precipitated by Shigella bacteria is known as bacillary dysentery or shigellosis.”
Like the norovirus, the infection can be spread from himself to person.
Dr David Kirrage, consultant with PHE West Midlands Vigorousness Protection Team, is now advising parents to ensure their children flow erode their hands properly.
He said: «Shigella flexneri is highly-infectious and surely spread in communities such as schools.
“The schools have taken reaches to reduce the risk of this infection being passed on including embellished cleaning of communal areas and touch points, supervised hand overlaying, and ensuring children with symptoms do not return to school until they are let loose from the infection.
«Shigella can be very unpleasant but is rarely serious; notwithstanding it is important that if a child develops Shigellosis symptoms, the family GP is telephoned.
“People who have had diarrhoea should stay away from cultivate or school until they have been free of symptoms for 48 hours and certainly if Shigella is doubted, should not return to school or work until stool samples participate in been tested and results show samples are free from the infection.»
Dr Lesley Mountford, the directory’s director of public health and adult social care, said: «We bear worked closely with the schools and Public Health England to beat it sure this situation has been dealt with responsibly, lower the risk of infection spreading any further.
«Effective hand washing is mere important in minimising the risk of spreading harmful bacteria which can upshot in in diarrhoea and vomiting bugs such as shigella.»
Shigella can also be spread finished with sex, health officials have warned.