Pfizer-Results

The Pfizer logo is displayed at the company's headquarters, Feb. 5, 2021, in New York. Sales of Pfizer’s COVID-19 vaccine and treatment pushed the drugmaker well past expectations in the first quarter, as profit grew 61%. (AP Photo/Mark Lennihan)

Pfizer now hopes to tell U.S. regulators how well its COVID-19 vaccine works in the littlest kids by late May or early June.

Pfizer is testing three extra-small doses of its vaccine in children under 5 after two shots didn't prove quite strong enough. Initial results had been expected last month but the company laid out the latest timeline Tuesday during its discussion of quarterly financial results.

(Copyright © 2022 APG Media)

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