Doctors warn flu season has not yet peaked as flu type rates switch prominence

Austin Regional Clinic has observed an increasing number of total number of flu cases since the beginning of 2020. (Courtesy Flickr)
Austin Regional Clinic has observed an increasing number of total number of flu cases since the beginning of 2020. (Courtesy Flickr)

Austin Regional Clinic has observed an increasing number of total number of flu cases since the beginning of 2020. (Courtesy Flickr)

Local doctors continue to caution residents to get vaccinated against the flu as confirmed cases of both types of the flu have yet to peak, according to Austin Regional Clinic data.

The week ending Jan. 25 produced the highest number of confirmed cases of flu type A at ARC locations. Through the end of December, ARC was recording higher rates of flu type B over flu type A.

Since the beginning of January, however, ARC has observed higher rates of flu type A than flu type B. The total number of flu cases overall has continued to climb since the beginning of the new year as well.

“We haven’t seen the peak of the season yet,” said Dr. Daniel Kelly, the associate chief of family medicine at ARC. “I’m still recommending to my parents to get vaccinated.”

According to the U.S. Centers for Disease Control and Prevention, there are two types of the flu virus: type A and type B. Kelly said while flu type B typically peaks later into the flu season, the strain came early this year.

“Typically, their rates of incidence do not ... rise and fall at the exact same time,” Kelly said. “One person could get flu A and flu B in the same season.”

Flu type A generally causes more severe symptoms, Kelly said, and usually comes with pronounced headaches, fever and body aches. This strain generally has a greater potential to be fatal for some patients than flu type B, Kelly said.

Further, flu type B viruses can only be spread from human to human, while flu type A can be transmitted through other animals. According to the CDC, flu type A viruses can be found in several different animals, including ducks, chickens, pigs, whales, horses and seals.

If someone received a flu vaccine earlier in the season they will be covered against both strains of the flu virus, Kelly said. While the vaccine does not guarantee a person will not get the flu, a shot greatly decreases the risk of contracting the virus.

Kelly told Community Impact Newspaper that this year’s flu season is stacking up to compare to the 2017-18 and 2018-19 flu seasons. Both of those seasons saw a higher-than-usual fatality rate than other flu seasons in recent years, Kelly said. CDC data shows that most of the deaths attributed to the flu those years happened to patients aged 65 years or older.

According to the CDC, more patients have been hospitalized already this season than during the entirety of the 2011-12 flu season. The flu season runs from October to May, according to the CDC.

CDC estimates show that from Oct. 1, 2019 to Jan. 18, 2020, at least 8,200 deaths—and up to 20,000 deaths—have been attributed to the flu nationwide.

“By the end of the year the flu deaths are going to be much higher,” Kelly said. “It is too early in the season to say flu B is done for the year. Anything could happen.”

By Iain Oldman

Iain Oldman joined Community Impact Newspaper in 2017 after spending two years in Pittsburgh, Pa., where he covered Pittsburgh City Council. His byline has appeared in PublicSource, WESA-FM and Scranton-Times Tribune. Iain worked as the reporter for Community Impact Newspaper's flagship Round Rock/Pflugerville/Hutto edition and is now working as the reporter for Northwest Austin.


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