My day in Clown World with the CDC’s Advisory Committee on Immunization Practices. On the menu: RSV, dengue, chikunguna, pneumococcus.
This morning we heard about the 4th pneumococcal vaccine on the scene. First there was the PPSV23 (aka Pneumovax)—used for many decades. Very inflammatory. Unclear how well/if it works. Prevnar then surfaced about 20 years ago for kids, starting with 7 serotypes. What it did was shift the serotype ecology, causing a reduction in…