Pfizers RSV vaccine, called Abrysvo,followed suit just a month later.
Both vaccines show promising results in preventing severe RSVa highly contagious virus that causes cold and flu-like symptoms.
Overall, these vaccines have been very well tolerated.
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Each group had approximately 12,500 participants.
A few cases of autoimmune syndromes were observed among Arexvy recipients.
There is also a vaccine adverse event reporting system (VAERS) where these cases can be reported.
