Was monkeypox present in Europe long before the first cases were detected in early May?
The World Health Organization (WHO) keeps this hypothesis in mind.
"We don't know if we're just seeing the tip of the iceberg," said Sylvie Briand, director of the WHO's global infectious risk preparedness department, during a presentation to the organization's member states on the “unusual” spread of the virus, during the World Health Assembly in Geneva (Switzerland).
Experts are trying to determine what caused this "unusual situation", and preliminary results do not show any variation or mutation of the monkeypox virus, said Sylvie Briand.
"We have a window of opportunity to stop the transmission now," she said.
“If we put the right measures in place now, we can probably contain this quickly.
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Endemic to eleven countries in West and Central Africa, monkeypox has suddenly been detected in more than twenty other countries around the world, including the United States, Australia, the United Arab Emirates and a dozen from European countries.
The UK reported a first case on May 7.
Since then, some 200 cases have been detected in countries far removed from those where the virus is endemic.
According to the European Center for Disease Prevention and Control (ECDC), precisely 219 cases - but no deaths - had been reported on Wednesday.
The Spanish Ministry of Health listed 98 confirmed cases on Friday, the United Kingdom 90, and Portugal 74.
“The very beginning of this event”
“We are currently at the very, very beginning of this event,” explained Sylvie Briand.
“We know we will have more cases in the days to come,” but “this is not a disease that the general public should be worried about.
It's not Covid or other fast-spreading diseases.
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Monkeypox belongs to the same family as smallpox, which killed millions of people around the world every year until it was eradicated in 1980. But it is much less serious than its cousin, with a mortality rate of 3 to 6%.
Most patients recover after three to four weeks.
The initial symptoms are high fever, swollen glands and skin rashes.
Read alsoHow to explain this upsurge in cases in Europe and North America?
Many of the cases involve homosexuals, but experts point out that there is no evidence that the disease was sexually transmitted, which would have rather been transmitted by close contact with an infected person with lesions on the skin.
There isn't really a cure, but antivirals have been developed against smallpox, one of which was recently approved by the European Medicines Agency (EMA).
Smallpox vaccines are found to be 85% effective against monkeypox.
But most people under 45 have not been vaccinated against smallpox, and vaccine stocks are now very low.