More reasons have emerged why Nigeria and so many other developing countries may not get their second batches of COVID-19 vaccines under the COVAX facility until September. A reliable source at the National Primary Health Care Development Agency (NPHCDA) told The Guardian yesterday: “We are expecting to get the next batch of COVID-19 vaccines in August. The Novavax COVID-19 vaccine, codenamed NVX-CoV2373, and also called SARS-CoV-2 rS protein nanoparticle with Matrix-M1 adjuvant, is a COVID-19 vaccine candidate developed by Novavax and the CEPI and is undergoing trials in India under the brand name Covovax. Many COVID-19 vaccines are given in two doses: the first initiates an immune response, and the second; ‘booster’ shot strengthens it. But for some existing vaccines, a longer wait between first and second doses yields a stronger immune response.

Source: The Guardian June 03, 2021 03:22 UTC