The HSE Health Protection Surveillance Centre has advised the public to take extra care when handling and preparing food, following an increase in the number of E.coli infections in recent weeks.
Ninety-six cases have been identified in Ireland in the past ten days, which is more than three times higher than this time last year.
It is a common cause of food poisoning, which can lead to serious complications.
The Health Service Executive said that while investigations have not identified a specific reason for the increase in cases, it wanted to remind people to be careful about food safety during the heatwave and to protect themselves against food poisoning.
It has advised that people should always wash their hands before and after handling food, wash fruit and vegetables thoroughly before eating them and always ensure minced meats are cooked all the way through.