Booster doses for Covid-19 vaccine have just been approved in the United States of America, says Health officials in the country.

Apart from the general public receiving the vaccine, there is a plan to also reach for the older and higher-risk people there.

Sources have disclosed that at least 15 African countries around the world, Nigeria especially, have not attempted to give at least one vaccine dose to more than 3% of their population.

Haiti is not left out, same as Ethiopia, another country with around 115 million people, and a nation where so far just 1.1% of the population have received at least one dose of a Covid-19 vaccine; Yemen, was inoculating people at a rate of about 244 doses per day, Reuters reports.

In the coming months, millions of Americans have the opportunity to receive booster shots of the Pfizer/BioNTech vaccine. This is a decision by the US Centers for Disease Control and Prevention means.

Meanwhile, there is a concern by the World Health Organization (WHO) chief, Tedros Adhanom Ghebreyesus, to allow more supply of the Covid-19 vaccinations to reach poorer nations first until at least the end of the year.