#altMMWR
We're back, baby! #altMMWR returns after 7 weeks
Our first paper looks at nirsevimab's effectiveness against RSV-related intensive care unit admissions among babies 👶
Tl;dr: it works! ~80% effectiveness for both of these outcomes
www.cdc.gov/mmwr/volumes...

For our fellow nerds,🧵👇
Nirsevimab Effectiveness Against Intensive Care Unit ...
This report describes a multicenter case-control investigation that found nirsevimab was 80% effective at preventing RSV-associated ICU admissions among infants.
www.cdc.gov
November 20, 2025 at 11:44 PM
Our 2nd #altMMWR is short & sweet, describing efforts to get more birthing hospitals enrolled in the Vaccines for Children program
This means more babies can get get HepB vaccines and nirsevimab
Now, almost half of babies born in the US should be covered
Progress!! 💪

www.cdc.gov/mmwr/volumes...
Notes from the Field: Expanding Birthing Hospital ...
This report describes a CDC collaboration with professional organizations and health departments to enroll birthing hospitals in the Vaccines for Children Program to increase infant immunization again...
www.cdc.gov
November 21, 2025 at 1:07 AM