A flu vaccine is readied at the L.A. Care and Blue Shield of California Promise Health Plans' Community Resource Center in Lynwood, Calif., on Friday, Oct. 28, 2022. (AP Photo / Mark J. Terrill, File)

High levels of flu-like illnesses were reported last week in 17 states — up from 14 the week before, the Centers for Disease Control and Prevention said Friday.

The virus that causes COVID-19 has more letters to describe its many derivatives than a bowl of alphabet soup. (mrs / Moment RF / Getty Images)

Although the common cold doesn’t get as many names – at least not the ones that make headlines – the specificity with which scientists talk about SARS-CoV-2, the virus that causes COVID-19, matters because it is still such a problem.

(KoldoyChris / Moment RF / Getty Images)

The endorsement from the CDC and the committee means the vaccines will be covered by public and private insurance plans. The new vaccines have been updated to fend off the currently circulating viruses that cause COVID-19.

Brian Ong, CVS pharmacist, draws up syringes with the Pfizer Covid-19 vaccine as he works at Peninsula Del Rey at the vaccine clinic where Covid-19 vaccinations are given at the senior living community on Friday, January 15, 2021 in Daly City, Calif. CVS administered the vaccine clinic. (Lea Suzuki / San Francisco Chronicle / AP)

A US Centers for Disease Control and Prevention advisory group is scheduled to meet to discuss COVID-19 vaccines Tuesday, meaning the vaccines could become available within just a few days, 

Dr. Allison Arwady appears on "Chicago Tonight" on Oct. 18, 2022. (WTTW News)
,

During his campaign for mayor, Brandon Johnson promised to fire Chicago Department of Public Health Commissioner Dr. Allison Arwady, and Friday night, he did just that — setting off a wave of recriminations and outrage.

Tedros Adhanom Ghebreyesus, Director General of the World Health Organization, speaks to journalists during a press conference about the Global WHO on World Health Day and the 75th anniversary at the World Health Organization headquarters in Geneva, Switzerland, Thursday April 6, 2023. (Martial Trezzini / Keystone via AP)

The U.N. health agency’s officials said that even though the emergency phase was over, the pandemic hasn’t ended, noting recent spikes in cases in Southeast Asia and the Middle East.

Despite the decline, about 1 out of every 13 deaths in the U.S. in 2022 was associated COVID-19. The virus killed nearly 245,000 people in 2022, CDC data shows.

(Scott Olson / Getty Images via CNN)

On Tuesday, the FDA changed the terms of the authorizations for those vaccines so that certain individuals could get an additional dose ahead of most others. 

Dr. Allison Arwady, commissioner of the Chicago Department of Public Health, appears on "Chicago Tonight" on March 20, 2023. (WTTW News)

Throughout the pandemic, Dr. Allison Arwady, commissioner of the Chicago Department of Public Health, led Chicago’s effort to fight the deadly virus. On this third anniversary of the pandemic, Arwady reflects on lessons learned and whether she would have done anything differently. 

(Patty Wetli / WTTW News)

During the past seven days, an average of 31 people have been hospitalized each day in Chicago from COVID-19, down more than 40% during the past week, according to city data last updated Wednesday.

(WTTW News)

It’s been three years since the first Chicago COVID-19 case was confirmed. Since then, more than four million people in Illinois have been diagnosed with coronavirus; it has killed more than 36,000 people in the state.

(Patty Wetli / WTTW News)

Mayor Lori Lightfoot on Thursday said the city is expected to move from a “medium” risk level for contracting COVID-19 back to a “high” risk level, likely sometime in the next week. When that happens, the city will reinstate an advisory, urging Chicagoans to mask up.

Mayor Lori Lightfoot addresses the news media on Wednesday Dec. 14, 2022. (Heather Cherone/WTTW News)

Mayor Lori Lightfoot said she is not experiencing symptoms after testing positive for COVID-19.

(Patty Wetli / WTTW News)

Chicago hospitals and health care providers are also coping with sharp increases in flu cases and illness caused by RSV, a respiratory virus, officials said.

(Patty Wetli / WTTW News)

The move is likely to reduce fears, at least temporarily, of an imminent surge of COVID-19 once colder weather settled over Chicago for the duration, forcing people indoors.

(Patty Wetli / WTTW News)

Chicago and Cook County last faced a medium risk of COVID-19 in mid-September.