CDC says these are the most commonly reported side effects from Moderna, J&J boosters


Hundreds of Coronavirus COVID-19 Vaccine Booster Vials and Syringes In Medical Office.

BATON ROUGE, La. (BRPROUD) — The Centers for Disease Control and Prevention released a list Thursday detailing the most common side effects reported by people after receiving boosters of Pfizer’s or Moderna’s two-dose vaccine or a second dose of Johnson & Johnson’s single-dose vaccine.

The most common side effects reported after a Moderna or Pfizer booster shot was pain at the injection site, fatigue, muscle pain, headache and fever, followed by chills and nausea, according to the agency. Reported side effects were similar to those seen after the second dose of the Moderna or Pfizer vaccines during the initial series.

The number of responses collected for the J&J booster shot was more limited, but people reported fever, fatigue and headache after receiving a second dose of the vaccine, according to the CDC.

The list was collected using the CDC’s text messaging system v-safe and the Vaccine Adverse Event Reporting System, a national vaccine safety surveillance program. The majority of people who received an additional dose of any vaccine were white women over the age of 50, according to the v-safe data.

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