“I got the COVID-19 vaccine today! My wing is feeling a little sore, but it’ll give my body an extra protective boost that keeps me and others healthy,” Big Bird wrote. “Ms. [Erica Hill, a CNN journalist] even said I’ve been getting vaccines since I was a little bird. I had no idea!”

The tweet comes just days after U.S. health officials gave the Pfizer’s kid-sized Covid vaccine final approval for usage in children as young as 5. According to the CDC, the vaccine was 91% effective in preventing Covid-19 among children ages 5-11.

Several politicians and media figures quickly latched on to the tweet, vehemently condemning the messaging as propaganda.