The Omicron variant of COVID-19 has another set of symptoms typical of other versions of the disease.
However, the imaginable side effects of the new vaccines, particularly those targeting Omicron, probably do not differ from those related to previous vaccines and boosters.
In August, the Food and Drug Administration (FDA) granted emergency use authorization to a pair of new recalls developed by pharmaceutical corporations Pfizer-BioNTech and Moderna. Each points to both the original strain of COVID-19 and the more recent Omicron variants (BA. 4 and BA. 5) of the novel coronavirus.
“Having a faster spike protein to look for through the immune formula makes the vaccine more effective at preventing infections and serious diseases with variants circulating lately,” said Kristen Nichols, PharmD, senior content control representative for the healthcare clinical effectiveness industry. Wolters Kluwer consultants, he told Healthline. ” In addition, since the immune formula will now recognize two similar variations, it would possibly also be more effective at detecting new variants. “
The “bivalent” booster shots were made available to the public in early September. That’s not enough to gather genuine information about the side effects of boosters. But clinical trial studies submitted to the FDA found that the side effects of the Omicron booster were similar to the symptoms of other COVID-19 vaccines.
The maximum non-unusual side effects of Omicron BA. 4 and BA. 5 withdrawal were injection pain, fatigue, headache, joint and muscle pain, chills, swelling and axillary tenderness, nausea/vomiting, skin redness and swelling at the injection site, and fever. .
Dr. Marisa Montecalvo, an infectious disease expert at NYC Health and Hospitals-Metropolitan and Westchester Medical Center, reported that “55 to 75 percent of other people experience pain at the injection site, and a small percentage of other people (5 percent) may have swelling or redness at the injection site.
The most serious but rare side effects of previous COVID-19 vaccines included anaphylaxis and other severe allergic reactions, myocarditis, pericarditis, and fainting. FDA officials said it was conceivable that similar disorders could also resist with the new vaccine boosters.
“Myocarditis/pericarditis is rare and continues, as with previous vaccines, mostly noticeable in adolescents and young adult men,” Montecalvo told Healthline.
“The threat after a booster dose appears to be less than after the first round of vaccines,” he added.
There’s no explanation why to think the symptoms of the new booster would be other than previous COVID-19 vaccines and boosters, said Dr. Jason Gallagher, a clinical professor and infectious disease expert at Temple University School of Pharmacy and a specialist in clinical infectious disease pharmacy. Temple University Hospital in Philadelphia.
“What it has replaced are the proteins on the surface of the protein it encodes,” Gallagher told Healthline. “All the other parts are the same and the side effects come from the immune response. “
“You can expect typical side effects from a vaccine,” agreed Dr. Jose Mayorga, executive director of the Family Health Centers at the University of California at Irvine Health. “These come with fatigue, arm pain, fever and headaches. Patients in whom we vaccinated our clinic had mild side effects that over-the-counter Tylenol or Motrin relieved.
“The only side effect I had with this vaccination was peace of mind,” Mayorga told Healthline. “I feel safer from serious illnesses. “
Gallagher said more information will be gathered about the side effects of the Omicron booster as more people get vaccinated.
“I wouldn’t be surprised if the side effects are more intense, especially if you’ve been boosted for COVID recently or if you’ve had COVID, because your immune formula is already ready” to attack the virus, he said.
The Centers for Disease Control and Prevention (CDC) recommends at least two months after a covid vaccine or illness before receiving a booster shot.
CDC officials also advise getting only one booster that matches your initial doses of the vaccine: a Moderna booster if you’ve received the Moderna vaccine, for example.
Like other COVID-19 vaccines and boosters, Omicron’s new booster should, at a minimum, be used by people suffering from serious illness and hospitalization. .
“It can also save you some infections,” he said. It adapts better [to the virus] than in a long time. “
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