. Original mRNA COVID vaccines protect young kids against Omicron, but efficacy wanes - IOPAC Press "Enter" to skip to content

Original mRNA COVID vaccines protect young kids against Omicron, but efficacy wanes

Moderna vaccine effectiveness against symptomatic Omicron was 60% 2 weeks to 2 months after the second dose and 36% from 3 to 4 months after the second dose.