Centers for Disease Control and Prevention

The only HIV vaccine in a late-stage trial has failed, researchers announced Wednesday, dealing a significant blow to the effort to control the global HIV epidemic and adding to a decadeslong roster of failed attempts.

The CDC is investigating a possible increase in severe cases of strep A, especially in children.

Three Chicago-area counties are at a “high” COVID alert level from the Centers for Disease Control and Prevention, joining dozens of other counties across Illinois in reaching the highest community level, which dictates that masks are recommended for all public indoor spaces.

Group A streptococci are the same bacteria that cause strep throat and scarlet fever, but invasive infections refer to more serious cases in which the bacteria spread to areas of the body that such pathogens normally don’t reach, like the bloodstream.

If Chicago reaches a “high” COVID alert level from the Centers for Disease Control and Prevention, the city will issue a mask advisory, Mayor Lori Lightfoot announced Thursday, just ahead of the holiday weekend.

Nearly 107,000 Americans died of drug overdoses last year. That’s according to final figures released Thursday.

Two Chicago-area counties have reached a “high” COVID alert level from the Centers for Disease Control and Prevention, joining dozens of other counties across the state in reaching the highest community level, which dictates that masks are now recommended for all in public indoor spaces.

Expanded growth charts released Thursday by the CDC now include a body mass index of 60 — up from previous charts that stopped at a BMI of 37.

Masks are encouraged in 29 out of Illinois’ 102 counties that have been raised to “high” COVID-19 community level status as a result of an uptick in weekly metrics, according to the Centers for Disease Control and Prevention. The latest CDC data showed a total of 74 counties, which accounts for nearly 73% of Illinois, are at an elevated status…

As the weather gets colder, flu season is worsening, and both Illinois and Indiana are no exception. Influenza activity is considered to be “very high” in both states based on the most recent data from the week ending Nov. 26, according to a Weekly Influenza Report from the Centers for Disease Control and Prevention. Activity was “low” in Illinois until…

Millions of children were now susceptible to measles, among the world’s most contagious diseases, according to a new report.

With an active flu season now underway, public health officials held a press conference to offer tips on how to stay protected from the virus, NBC 5’s Lauren Petty reports.

A deadly listeria outbreak linked to deli meats and cheeses has led to an alert in six states, including in Illinois. So what should you know about the outbreak and what signs should you watch for?

With Illinois part of a recent six-state alert linked to a deadly listeria outbreak, many might be wondering what exactly is listeria and who is most at risk?

In total, 16 people have been sickened across six states, including Illinois.

A food poisoning outbreak tied to deli meat and cheese has sickened 16 people in six states including Illinois, U.S. Health officials said Wednesday.

A food poisoning outbreak tied to deli meat and cheese has sickened 16 people in six states including Illinois, U.S. Health officials said Wednesday.

Masks are advised in five Illinois counties that have returned to “high” COVID community level status following an increase in weekly metrics, according to the latest update from the Centers for Disease Control and Prevention.

While community COVID levels for the majority of the state are not currently showing concerning numbers, three counties in Illinois have recently reported a “high” level of community transmission, perhaps pointing to a sign of what’s to come as the colder weather approaches.

As temperatures drop and restrictions like vaccination and mask mandates continue to ease, Chicago area doctors are bracing what they’re predicting to be a “potentially scary cold and flu season.”