By CBSBoston.com Staff

BOSTON (CBS) — A 4-year-old boy was accidentally given a Pfizer COVID-19 vaccine shot at a CVS site in Fitchburg this week. According to his mom, he was supposed to be getting a flu shot when the error occurred.

The Pfizer vaccine was recently authorized for kids ages 5-11, but it has not been approved yet for kids younger than five years old.

Meghan Cameron said she brought her son Jack to a CVS on Rollstone Road in Fitchburg, where he accidently received a pediatric dose of the Pfizer vaccine.

“At this time, we are worried and concerned for Jack’s health, now and in the future,” she told WBZ-TV on Saturday. “We will continue to monitor him.”

CVS says it is investigating what it calls “a vaccine administration error.”

CBSBoston.com Staff