How to share vaccines.

The article focuses on issues concerning the global supply of COVID-19 vaccines. A global scheme was established by the World Health Organization (WHO) which is known as COVAX. Based on the pro-rata distribution models, COVAX initially allocates the vaccine per head of population. However, the vast majority of vaccine have already been purchased by high-income countries. Vaccine distribution in various countries as of May 2021 are noted including that of Israel, Africa and Brazil.