The so-called 'vaccine deserts', countries where no COVID-19 vaccines are available at all, are still being reported around the world.
According to the WHO, nearly a dozen countries have no vaccines, many of them in Africa.
The WHO said last week that delays and a shortage of supplies are seeing African countries fall behind the rest of the world.
The continent accounts for just one percent of vaccines administered worldwide.
In Haiti, not a single dose has been administered to anyone.
Government officials cite the lack of infrastructure, and concerns over side effects.