The WHO has released a list of nine at-risk nations, highlighting where the plague is likely to invade next. The countries include South Africa, Kenya and British tourist hotspots Mauritius and Seychelles.
Reported plague cases have dipped in recent days, but the WHO is preparing for another wave of the disease.
The WHO tweeted: “The daily number of plague cases reported in Madagascar has been declining as of 12 October.
About 124 people have been killed by the disease in Madagascar, with more than 1300 others infected.
Black Death map: The plague is currently spreading across Madagascar
Could the Black Death plague reach the West?
The Black Death is an umbrella term that refers to the pneumonic and bubonic plagues.
We can’t rule out the possibility of further plague spikes in Madagascar
Unlike the more common bubonic plague, which is usually contracted via insect bites, the pneumonic plague is airborne and can be transferred via coughing and sneezing.
For this reason increased security measures have been put in place for people flying out of Madagascar.
Black Death news: Some strains of the plague are airborne
The UK Government has urged Brits in Madagascar to be aware of the dangers, without going so far as discouraging travel to the island.
A statement said: “There is currently an outbreak of pneumonic and bubonic plague in Madagascar; outbreaks of plague tend to be seasonal and occur mainly during the rainy season, with around 500 cases reported annually.
“Whilst outbreaks are not uncommon in rural areas, the latest outbreak has seen an increase in reported cases in urban areas, including Antananarivo.”
Black Death latest: The UK Government has urged Brits in Madagascar to be wary
Up to 200 million people died from the disease – a shocking 60 per cent of Europe’s total population.The plague then made a resurgence in the 17th century, when one in five Londoners who caught the disease died.