Times Staff Report

The Cook County Department of Public Health is warning the public about an outbreak of bites from what officials believe are mites.

The county is investigating the incidents along with other area health departments and the Illinois Department of Public Heath.

The bites appear to be consistent with those from the microscopic mite. Mites have not been known to transmit disease in humans.

The bites are described as red circles up to a quarter-sized in diameter with pimple-like centers. Multiple bites can appear as a red rash. Symptoms are generally localized and disappear within 10 to 14 days.

The use of insect repellents may be useful in keeping the mites at bay, officials said, but wearing a heavy skin lotion is likely more beneficial as the mites may become mired in the lotion and not bite.

Public health officials recommend keeping doors and windows closed to keep the mites from blowing indoors. The mites can easily penetrate screens, so keeping screen doors closed is also recommended.

Prevention may also include wearing long sleeves and pants, avoiding walking near heavy weeds and vegetation in the evening when mite activity is heaviest and washing the skin once indoors, according to the county.

The public health agencies are encouraging those with bites not to scratch, saying breaks in the skin can cause an opportunity for infection.

Those with bites are being advised to check with their doctor for advice on medication that can relieve the itching.

Similar outbreaks of mite bites have been reported recently in Nebraska, Kansas, Missouri, Texas, Kentucky, Ohio and Colorado.