City health officials did not immediately identify whether the latest people to contract measles are children or adults, nor did they disclose their condition, as they have with all other cases of measles.

Since the first confirmed case of measles was diagnosed in a shelter resident on Friday, approximately 900 residents have been vaccinated, officials said. 

A team from the Centers for Disease Control and Prevention is on its way to Chicago to assist the Chicago Department of Public Health respond to the apparent measles outbreak, Chicago health officials said.

The child diagnosed with measles “has recovered and is no longer infectious,” according to the Chicago Department of Public Health.

Health officials said they are working to identify and notify people who may have been exposed to measles, including at the facilities where the resident sought medical care.

Local health officials are working to notify people who may have been exposed to measles after a northwest Indiana resident sought medical care last week in Chicago while contagious with the infection.

While the public health emergency is officially over, COVID-19 is still making people sick, and health officials say they’ve entered a new front.

More parents are questioning routine childhood vaccinations that they used to automatically accept, an effect of the political schism that emerged during the pandemic around COVID-19 vaccines, experts say.

The measles case involves an unvaccinated individual and was confirmed by public health officials on Wednesday.

A combination of economic factors, health access and misinformation pushed childhood vaccination figures down to dangerous levels in recent years for many illnesses, including measles, experts said.

RSV fills hospitals with wheezing babies each fall and winter, and the virus struck earlier than usual and especially hard in the U.S. this past year.

Nearly nine out of 10 adults in the U.S. say that the benefits of the measles, mumps and rubella (MMR) vaccines outweigh the risks – a share that’s remained unchanged since before the COVID-19 pandemic, according to data published Tuesday by the Pew Research Center.

In a report issued Wednesday, the WHO and the CDC said millions of children were now susceptible to measles, among the world’s most contagious diseases. In 2021, officials said there were about 9 million measles infections and 128,000 deaths worldwide.

Pfizer announced Tuesday that a large international study found vaccinating moms-to-be was nearly 82% effective at preventing severe cases of RSV in their babies’ most vulnerable first 90 days of life. At age 6 months, the vaccine still was proving 69% effective against serious illness.

Rates were close to 94% for measles, whooping cough and chickenpox vaccinations for the 2020-21 school year. That was down 1% from a year earlier and means 35,000 U.S. children entered kindergarten without evidence that they were vaccinated for extremely contagious diseases, the CDC said in a report.

The Fourth District Appellate Court on Wednesday tossed out a temporary restraining order that had prevented CPS from taking employment action against a half dozen CPS educators who refused to comply with the school district’s vaccine requirements.