The American Academy of Pediatrics said on Tuesday that children ages 6 months to 23 months should receive a COVID-19 vaccine, in contrast with federal health officials.
The nonprofit educational group behind Sesame Street released a PSA in which Elmo, who is 3.5 years old, has just gotten vaccinated.
Families camped out in Bloomingdale, and Chicago will have COVID vaccine clinics for the youngest recipients.
Pharmacies like Rana-Reagan in Bloomingdale got their first shipments of the vaccine for younger children early Monday morning.
Tens of thousands of additional COVID-19 vaccines are being prepped to send out to different sites across the city.
Researchers say the risk was lowered by 33% during the Omicron period, and up to 71% during the Delta period.