A potential outbreak of scarlet fever means warning letters have been sent to all nurseries and schools across Cumbria.
Over the last 12 months, cases of the highly contagious disease have doubled nationally.
Health experts say a similar pattern is being seen in the county, especially in West Cumbria.
Symptoms include a sore throat, a pink itchy rash and swollen tongue.
While the condition has become less serious than it once was, anyone showing symptoms is advised to see a GP.
For more information, you can visit the NHS website here.