The first potential cases of human-to-human transmission of monkeypox in the United States have been detected this year.
A total of four cases were detected this weekend, two in California and one in Colorado and New York.
It leads the United States to 14 infections in eight states, with the majority of infections between gay and bisexual men.
California health officials said their second case identified this weekend was “close contact” with an initial patient diagnosed three days earlier.
In Colorado, another person being investigated for the virus is a “close contact” of a gay or bisexual young man who was found infected the day before.
The first patients in each state fell ill shortly after returning from trips abroad to Europe and Canada, respectively, facing outbreaks of the virus endemic to West Africa.
The explosion of cases in 24 countries caused the World Health Organization (WHO) to upgrade the threat level of the virus to “moderate”.
They warned that if infections continue to increase, vulnerable people and children, who are more likely to die from the virus, could start spreading it.
There is also growing concern that the disease will spread to wildlife and allow it to become endemic worldwide.
In California, the case was detected in Sacramento, a city of 500,000 people, and dates back to the initial infection detected three days earlier.
State health officials insisted the risk to the public was “very low”, although contact tracking was still ongoing.
On May 24, they revealed a suspicious case of a person who had returned from Europe, who is experiencing an outbreak, the day before.
WHO increases risk of “moderate” monkeypox outbreak
The World Health Organization (WHO) has upgraded the global Monkeypox threat to “moderate” as the tropical virus spreads to dozens of countries.
The WHO said the explosion of unrelated cases with each other or with Africa means the current figure is “probably an underestimation”.
He warned that if infections continue to occur, vulnerable people and children, who are more likely to die from the virus, could start spreading it.
So far, the outbreak, which was first detected in early May, has spread to 24 countries and has been diagnosed in 106 Britons, most of whom are men who have sex with men.
There is also growing concern that the virus will spread to wildlife and become endemic worldwide, as is the case in parts of Central and West Africa.
The passage between humans and animals would also increase the risk of mutation in monkeypox. At the moment the risk to public health is moderate, but the WHO said it had the potential to “become high”.
In Colorado, officials said his new case was in Denver and a “close contact” of the case was detected just a day earlier.
They also said that the risk to the public “remains low”.
It was not revealed how the other two cases could have been infected in California and New York.
Tests are being conducted at the Centers for Disease Control and Prevention (CDC) to confirm that these are smallpox infections.
Most infections occur among men, but in Virginia the case is in a woman who has recently returned from West Africa.
The virus has been detected in California, Colorado, Florida, Massachusetts, New York, Utah, Virginia and Washington.
Only symptomatic people can spread the virus, usually through physical contact with infectious skin lesions.
While not a sexually transmitted infection, health officials say the virus can spread through touch to the genital area.
To date, more than 650 cases have been detected in 24 countries where the virus is not endemic, which has led the WHO to increase its threat level.
In a risk assessment released Sunday, they warned that its “moderate” rating could be pushed to “high” if the virus “seizes the opportunity to establish itself as a human pathogen” and spreads to vulnerable groups.
The “sudden appearance” and “wide geographical scope” of the cases suggest that widespread human transmission of the virus, which spreads through skin-to-skin contact and the drops of an infected person, is underway, he said. ‘WHO.
He also warned that the rise in monkeypox infections suggests that the virus “may have been circulating unrecognized for several weeks or more.”
The cases reported so far have been mild, but there is a risk that the virus will have a “greater health impact” if it is spread to people at risk, including children and immunocompromised people, such as some HIV patients, who ” he may be especially at risk. ” more serious illness “.
Smallpox can kill up to 10% of people infected. The softer strain caused by the current outbreak kills one in 100, similar to when it first hit Covid. The mortality rate from viruses has been higher among children in previous outbreaks.
The WHO warned that there is a “high risk” of the virus spreading through skin-to-skin contact between families and sexual partners, as well as from contact with contaminated materials such as utensils, bedding and clothing.
Health officials have warned that smallpox, a virus endemic to parts of Africa and known for its rare and unusual rashes, bumps and injuries, could also spread to some pets and become endemic in Europe. Image of undated brochure file issued by UK Health Safety Agency on Monkeypox stages
“However, at present, the risk to the general public appears to be low,” the agency said.
He warned that a “large part” of the population is vulnerable to the smallpox of the monkey due to the suspension of the smallpox vaccination scheme.
Very few people under the age of forty have been vaccinated. In the United States, young people were usually offered this time until four decades ago, around the point where the virus was eradicated.
Because the smallpox and smallpox of the monkey are so similar, it is believed that those who received the blow have up to 85 percent immunity against the circulating strain.
No cases of smallpox have been reported among doctors in the current outbreak, he noted, but an NHS worker became infected in 2018 after treating a patient who had returned from Nigeria.
In its report, the WHO also warned that people who have recently had multiple sexual partners, either where they live or abroad, “may be at risk” of having the monkey’s smallpox.
He said health leaders should reach out to at-risk communities, which “currently” include men who have sex with men and their close contacts.