vaccine

It was only in early October that limited quantities of vaccines reached some impacted communities.

Bawumia said he initiated a partnership between Ghana's government and US-based company Zipline, which led to the creation of the world's largest vaccine delivery network.

His health secretary nominee, Robert F Kennedy Jr, is under scrutiny for his vaccine scepticism.

Outbreaks can be controlled by preventing infections with vaccines, though these are usually only available for people at risk or those who have been in close contact with an infected person.

Some of Kennedy’s own stated aims for government are bound up with misinformation - and many medical experts have expressed serious concerns about his nomination, citing his views on vaccines and other health matters.