2) Pneumococcal vaccines. Pneumococci are bacteria which are *one* of the causes of clinical diagnosis called "pneumonia". Pneumococcal vax protect us against *this* cause of pneumonia, but not others (including viruses). Prevnar-20 pneumococcal vax is a one done vax: good for life. CDC info here:

3) Pertussis [Whooping cough] vax. If you got usual childhood vax [I did!] you likely got "DPT". "P" stands for "Pertussis": whooping cough. aka "100 day cough". Pertussis vax can lose efficacy. Who knew? I didn't: and got it from a patient. My vax wore off. 0/10 do *not* recommend whooping cough.