A recent outbreak of measles in the Chicago region has prompted health officials to urge schools to monitor students' vaccination status and encourage shots to reduce the risk of infections. As of April 18, 2024, a total of 65 cases have been reported in Chicago and its surrounding areas.
The most recent case was identified at a Sam's Club store in Evergreen Park, Illinois. Anyone who visited the store between the hours of 10 a.m. and 2:45 p.m. on April 9 may have been exposed to measles.
The individual responsible for the exposure is a Chicago resident with no known link to recent measles outbreaks at migrant shelters in Chicago.
DuPage County health officials confirmed the first case of measles in the county since 2009 on April 15. The source of infection for this case is unknown.
Measles is a highly contagious disease that can result in fever, coughing, rash, and conjunctivitis. It circulates in a room for up to two hours after an infected person sneezes or coughs.
The U.S introduced the measles vaccine program in 1963 which almost eliminated the disease. Prior to that nearly 90,000 cases were reported across Illinois in 1938.
Recent Chicago area outbreak represents the most infections in at least two decades with the highest comparable tally of 59 occurring at a downstate Illinois college in 1994.
Illinois has reported a total of 62 measles cases in the Chicago region as of March 2023. The majority of those falling sick are children under the age of 5.
The Illinois Department of Public Health (IDPH) and Chicago Department of Public Health (CDPH) have been working diligently to identify and notify individuals who may have been exposed to the virus.
To protect against measles, it is recommended that individuals ensure they are up-to-date with their MMR vaccinations. The vaccine protects against measles, mumps, and rubella.
Schools are being asked to review immunization records for all students and keep lists of those who are not fully vaccinated. This information would be needed if students must be excluded from school during an outbreak.
As of April 18, new cases of measles in Chicago have gradually declined with three reported this week compared to 22 the week of March 24.
The IDPH and CDPH are urging educators to follow up with families of students who are unvaccinated and provide them with information about the disease, the vaccine, and exclusion policies.