A successful Ebola vaccine delivery shows how a Covid-19 vaccine would work in Africa

There have been growing concerns the very low-temperature requirements for the promising Covid-19 vaccine candidates developed by Pfizer and Moderna will lead to storage and logistics challenges that may hinder access to these vaccines in most parts of Africa and other developing regions, even in rural parts of developed countries. The Pfizer and Moderna candidate, which have both been reported to be 95% effective in stopping Covid-19 transmission, require ultra-cold storage of -80 oC and -20 oC (-112 oF and -4 oF) respectively. While these are well-founded concerns, some African countries have experience in the use and successful delivery of at least one vaccine that requires ultra-cold storage.