Arex, GSK pharmaceutical company’s single-dose RSV vaccine, was 82.6% effective against lower respiratory tract diseases (cough, wheezing, shortness of breath) in the first season, while Abrysvo, the single-dose vaccine unique against Pfizer’s RSV, was almost 89% effective.
When it comes to side effects, the RSV vaccine is similar to other respiratory virus vaccines, Prickett says. “[Puede causar] a little slight pain, swelling at the injection site, maybe a little fever, but it has been very well tolerated,” he adds.
In clinical trials in which Axivy was tested, 61% of study participants reported pain at the injection site; 34% reported fatigue; 29% reported muscle pain; and 27% reported headache. The most common side effects among trial participants receiving Abrysvo were fatigue (16%), headache (13%), and injection site pain (11%).
Importantly: A small number of clinical trial participants (6 out of more than 38,100) who received the vaccine experienced neuroinflammatory reactions, such as Guillain-Barre syndrome. A small number of cases of atrial fibrillation have also been reported.
Researchers are conducting additional safety studies to determine whether the vaccines triggered these reactions or whether they occurred randomly, the CDC says. In the meantime, Prickett says people who have had neuroinflammatory reactions to other vaccines should talk to their doctor and evaluate the risks and benefits of the RSV vaccine. “However, in most patients, that is probably less of a concern,” she adds.
When should you get vaccinated against RSV?
If you are going to get the vaccine, you should get it as soon as you can. Virus season is underway and RSV cases are already rising in the United States, according to federal data. “And like other vaccines, it will take a few days to a few weeks to fully develop the immunity that that vaccine has given you,” Neilsen says.
You can receive the RSV vaccine at the same time as the flu vaccine and the COVID-19 vaccine; However, if you prefer to get vaccinated individually, that is fine too.
“It’s really your preference in terms of convenience,” CDC Director Mandy Cohen said at a recent briefing with the National Foundation for Infectious Diseases.
2023-10-02 21:30:31
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