The Moderna and Pfizer bivalent boosters target both the original strain of the COVID-19 virus as well as the two most widely-spread omicron variants (BA.4 and BA.5).
U.S. Food and Drug Administration
Regulators at the U.S. Food and Drug Administration on Friday granted emergency authorization to Pfizer’s COVID-19 vaccine for 5- to 11-year-olds, a step that means kid-sized doses can begin shipping to health care providers across the country. The Centers for Disease Control’s panel of vaccine experts is scheduled to meet Tuesday to discuss guidelines for the vaccine’s use in the younger age group.