These countries lack good access to innovative treatments. It can take four to seven years longer for new treatments to become available in low-income countries, according to the Bill & Melinda Gates Foundation, if they become available at all.
Pfizer said its plan includes 23 wholly-owned, patented medicines and vaccines that treat infectious diseases, certain cancers, and rare and inflammatory diseases.
The COVID-19 vaccine Comirnaty developed with BioNTech was also on the list.