STATEN ISLAND, NEW YORK — Coronavirus (COVID-19) Boosters are now available that target two Omicron sub-variants that have increased in the United States in 2022. Some may be concerned about the potential side effects.
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According to Yale Medicine, the new Moderna and Pfizer bivalent vaccine shots contain two messenger RNA (mRNA) components of the coronavirus, with half of the vaccine targeting the original strain and the other half targeting the two Omicron, sub-variants BA.4 and BA.5.
To obtain the Moderna COVID-19 Vaccine, Bivalent, you must be at least 18 years old. To receive the Pfizer-BioNTech COVID-19 Vaccine, Bivalent, you must be at least 12 years old.
Aside from the age criteria, there is no practical difference between the shots, according to Infectious disease specialist Dr. Peter Chin-Hong of the University of California, San Francisco. “From the standpoint of your body’s immune system, it doesn’t remember which brand it is,” he added.
There is currently insufficient official data on the side effects of the BA.4 and BA.5 upgraded COVID-19 shot.
On the other hand, an FDA study collected data on nearly 600 participants who received a booster targeting an earlier strain of Omicron known as BA.1.
The following were the most frequently reported side effects from the BA.1 study:
- Injection site pain, redness, and swelling
- Fatigue
- Headache
- Muscle ache
- Chills
- Joint discomfort
- Fever
