As monkeypox cases rise, nations urged to scrutinize vaccine stores

“If human-to-animal transmission occurs and the virus spreads through an animal population, there is a risk that the disease could become...


“If human-to-animal transmission occurs and the virus spreads through an animal population, there is a risk that the disease could become endemic in Europe,” the agency warned.

Some experts have feared for years that there could be a resurgence of monkeypox.

The last known cases of smallpox occurred in 1977, and it was declared eradicated in 1980. With the end of smallpox vaccination programs, the number of people susceptible to this family of viruses increased every year.

Scientists in Portugal sequenced monkeypox virus in samples of skin lesions taken from a male patient on May 4, but this sequence is incomplete. So far, the current strain appears to be closely related to versions exported from Nigeria to Britain, Israel and Singapore in 2018 and 2019, the researchers concluded.

The United States sequenced a sample of the first confirmed case, in Massachusetts, within 48 hours and shared the sequence publicly. The samples from Massachusetts and Portugal appear closely related, Dr. McQuiston said.

“All signs point to this being an outbreak associated with person-to-person spread,” she added.

The West African version of the virus is thought to cause milder symptoms. It does not spread easily among people and has a mortality rate of around 4%, compared to a mortality rate of around 11% with the Central African version and 30% for smallpox. No deaths have been reported in the current outbreaks.

There is no evidence that the virus has changed significantly in virulence or mode of transmission. Unlike the rapidly mutating RNA coronavirus, monkeypox is a large DNA virus capable of correcting its genetic errors.

“These are particularly stable viruses, so monkeypox is less prone to mutations,” said Dr Raina MacIntyre, an epidemiologist at the University of New South Wales in Sydney, Australia, and a member of the WHO task force. on monkeypox.

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Newsrust - US Top News: As monkeypox cases rise, nations urged to scrutinize vaccine stores
As monkeypox cases rise, nations urged to scrutinize vaccine stores
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