The flu, COVID-19, RSV: Why everyone is getting sick – LiveNOW from FOX

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Health officials say the number of Americans receiving flu shots and COVID-19 treatments are down (Credit: FOX News/News Edge)

If youre feeling under the weather lately youre not alone.

According to the Centers for Disease Control and Prevention (CDC), seasonal influenza activity remains elevated nationally, and more than 20,000 people were admitted to the hospital for COVID-19 last week.

Despite data released Friday showing a continued drop in flu hospitalizations, other indicators were up including the number of states with high or very high levels of respiratory illnesses.

The agency said cases have ticked up 16.2% compared to last week, and in some regions of the United States, the flu virus is intensifying after weeks of an apparent national decline.

A sick woman lies in bed wearing a surgical mask. (Credit: Ute Grabowsky/Photothek via Getty Images)

"Nationally, we can say we've peaked, but on a regional level it varies," the CDCs Alicia Budd told the Associated Press. "A couple of regions havent peaked yet."

Academic officials also recently cited concern over the high number of school absences due to various illnesses.

But what is contributing to a higher number of hospitalizations and respiratory illnesses?

Tracking during flu season relies in part on reports of people with flu-like symptoms who go to doctors offices or hospitals. But, many people with the flu are not tested, so their infections arent lab-confirmed.

COVID-19 and other respiratory viruses can sometimes muddy the picture, as well.

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RSV is a common respiratory virus that usually causes mild, cold-like symptoms.

Alicia Budd, who leads the CDCs flu surveillance team, said several indicators are showing "continued increases" in flu.

There are different kinds of flu viruses, and the version thats been spreading the most so far this year usually leads to a lesser amount of hospitalizations and deaths in the elderly the group on whom flu tends to take the largest toll.

Health experts also said that a growing number of people have been abandoning pandemic-era safety measures skipping out on flu and COVID-19 vaccines this season and this could be contributing to the higher number of illnesses they are seeing.

"Pandemic precautions those things are dwindling. And hence we're being exposed to more respiratory viruses than we have last year," Libby Richards, an associate professor at Purdue University School of Nursing told FOX News.

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If you've been waiting to get an updated COVID-19 shot, your wait could soon be over. The FDA cleared the way Monday for two new shots, from Pfizer and Moderna, for children as young as six months. A CDC panel is meeting Tuesday to weigh in on the vaccines. (Credit: FOX 5 Atlanta)

The CDC has reported decreases in the number of Americans rolling up their sleeves for the coronavirus shot. Richards noted that roughly 10 million fewer children and adults received the flu shot this year.

RELATED: Flu cases surge across US, CDC reports

Despite this, flu vaccination rates still fare better than rates for the other two main respiratory viruses COVID-19 and RSV. About 14% of adults and 5% of children have gotten the currently recommended COVID-19 shot, and about 13.5% of adults 60 and older have gotten one of the RSV shots that became available earlier this year.

And with so many different respiratory viruses going around, Richards added that its likely that some people are becoming infected with different viruses back to back.

"Compared to this time point last year, we are seeing a higher rate of hospitalizations from the flu and RSV," she continued.

She said the best way to protect yourself from things like the flu and COVID-19 is to get vaccinated. Doctors and other health experts urge everyone 6 months and older to get an annual flu vaccine.

Health experts said that there is still time to get a flu shot if you havent gotten one yet, citing how a second surge is always possible and cases can last until May.

FOX News, the Associated Press contributed to this story.

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The flu, COVID-19, RSV: Why everyone is getting sick - LiveNOW from FOX