Centers for Disease Control and Prevention

The Illinois Department of Public Health is working to identify potential locations of exposure, including the clinic in southern Illinois where the patient sought care, to see whether any other patients were exposed.

State health officials said the pediatric patient tested positive for measles and that the case was a “associated with international travel.”

Dozens of people in the St. Louis region became sick after eating at catered events late last year. Lawsuits seek to tie the poisoning to a national vegetable company.

Reported cases of the infectious disease have surpassed pre-pandemic levels in Missouri.

The four cases are included in an E. coli outbreak that has sickened more than 70 people around the country.

The agency tested the blood of health care workers who had been in contact with a Missouri patient who tested positive for the virus without animal contact.

The Environmental Protection Agency announced drinking water providers will have 10 years to identify and remove lead pipes across the country.

A routine flu screening in late summer found the H5N1 virus in a Missouri patient. Unlike the other reported cases, this person did not report being in recent contact with animals.

The Missouri Department of Health and Senior Services detected the first human case of H5 bird flu in Missouri. The Centers for Disease Control and Prevention confirmed the case. Infection transmission among the public remains low.

Wastewater tests are designed to provide an early warning system so that public health officials can ward off outbreaks.