After more than 200 clinical trials and nearly 300 partnerships and collaborations among manufacturers worldwide, production has increased, in just a few months from zero to 2.2 billion COVID-19 vaccine doses by the end of May with an astounding estimate of 11 billion doses by the end of 2021 (Airfinity data here). This will be enough doses to vaccinate the world’s adult population.
Critically, however, COVID-19 vaccines currently are not equally reaching all priority populations worldwide.