The current outbreak of monkeypox cases in some 30 countries, outside endemic areas, suggests transmission of the virus has gone under the radar for some time, the World Health Organization (WHO) has announced. at a press conference on Wednesday.
“The sudden appearance of monkeypox in different countries at the same time suggests that transmission went undetected for some time,” said its director, Tedros Adhanom Ghebreyesus.
Read alsoMonkey pox: should we be worried about the increase in the number of cases in the world?
More than 550 cases in 30 countries - where the disease is not endemic and occurs only very rarely - have been reported to the WHO since the current outbreak of cases began nearly a month ago.
The arrival in France and Europe but also in North America and the Middle East in particular of a disease usually present in Africa has caused a wave of concern in recent weeks, with the fear of a new pandemic after that of the Covid-19.
“This is an outbreak, which can be stopped”
“WHO urges affected countries to expand their surveillance, and to screen for cases in their wider communities,” warned Dr. Tedros, recalling that anyone could be infected with the virus in the event of close contact. with a patient.
So far, most of the cases identified concern “men who have sex with men”, specified the director of the WHO.
If the UN health agency expects an increase in the number of cases, there is currently no question of talking about a new pandemic.
"This is an outbreak, and outbreaks can be stopped," said WHO monkeypox technical lead Rosamund Lewis, noting that the current spread of illness was "a cause for concern.
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Although the current wave of cases has yet to result in a death, the monkeypox virus has killed every year on the African continent for half a century.
The virus has similarities to that of human smallpox, eradicated since the 1980s, when vaccination campaigns against this disease ceased.
The decline in immunity in the population that followed could explain the upsurge in cases currently observed, according to the WHO.
However, mass vaccination using the human smallpox vaccine, which grants partial immunity against monkeypox but whose supplies are currently limited, is not on the agenda.