Flu cases are increasing across the country, and H3N2 is the dominant strain at the moment. H3N2 strains are known to cause more severe illness in older adults, while B strains are known to have a greater impact on children.
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All studies, quotes, and statistics used in a news article must link to or reference the original source. The article must also clearly indicate why any statistics presented are relevant. All content related to new treatments, drugs, procedures, and so on must clearly describe availability, pricing, side effects, treatment target e. Paul in heated exchange. Colorado Gov. Polis pushes 'get back to normal' strategy. It's bad news for the vaccine, he said.
Influenza vaccines protect against four different strains of the flu: H3N2, H1N1 and two strains of influenza B. Hensley's study only covers H3N2, but that happens to be the main circulating strain.
The vaccine mismatch may help explain an outbreak of flu at the University of Michigan last month that affected more than people. That indicates the vaccine was not effective in preventing infection. It's what flu viruses do, Hensley said.
Flu viruses mutate all the time—far more than other viruses, including the coronavirus. And different variations can circulate at the same time. But this version of H3N2 has changes that help it escape the antibodies the body makes in response to vaccines. October 22, —CDC today reported two new U. One of these variant influenza virus infections is the first to occur during the flu reporting season i. Variant virus infections occur rarely, and usually in the context of exposure to pigs when they happen.
However, there have been a small proportion of such infections where the original source of exposure to a pig cannot be readily identified. When this happens, the possibility of limited human-to-human spread of a variant influenza virus cannot be ruled out. That means the virus may have passed from a pig to an intermediary person who then spread the virus to the patient in whom the virus was detected.
There is epidemiologic follow-up for every case reported to try to identify any such intermediary persons and to make sure there is no ongoing spread of the virus in question. Of the two just-reported variant influenza virus infections, one of the patients had contact with pigs prior to illness onset; but in the other case, no known direct or indirect swine exposure has been identified.
It is possible that limited human-to-human spread occurred in this case, however, no ongoing human-to-human spread has been identified with either patient. These viruses have important antigenic and genetic differences from seasonal influenza A viruses that circulate worldwide among people. Rebecca did lateral flow tests and got negative results, but was ill for more than a week, and was left wondering "if it's ever going to end". It may not be Covid, but it is linked to what's happened in the past 18 months.
She says the numbers have been as high as you'd see in a normal winter and the main reason is because of the easing of coronavirus restrictions. We think that that was primarily due to the restrictions on meeting up. Got my first cold since about January and I can confirm it's one of the worst colds I've had - 'freshers' flu' on steroids. So while the lockdown rules were designed to stop Covid spreading, they also stopped other viruses moving between people too.
Now we're going out, meeting with friends and getting on public transport again, the common cold spreads again. Not mixing so much last winter has meant this year the government's trying to get more people than ever to have a flu vaccine. Health officials are worried as it will be the first year both Covid and flu will circulate at the same time, so they want everyone who's eligible to get it.
More than 40 million people across the UK are being offered a flu jab, including for the first time, all secondary-school children up to the age of Firstly, remember the three main symptoms of coronavirus.
If you have one of these, get a PCR test. If you don't have these symptoms but still want to check, you can do a free lateral flow test. If you can't get one through your employer or place of education you can get test kits delivered free to your home or pick them up. ZOE, the world's largest ongoing study into the virus, states through their millions of health reports, many of the symptoms of Covid are now the same as a regular cold, especially for people who have received two doses of the vaccine.
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