And the British Health Security Agency said that the latest two cases of “monkeypox” were for two people living in the same house, and indicated that it was conducting an investigation to find out how they contracted the virus.
One of the injured is receiving treatment in a specialized infectious disease unit in a hospital, while the other is being isolated at home, according to Reuters.
“Although the investigation is ongoing to determine the source of the infection, it is important to ensure that it does not spread easily between people and requires close personal contact with an infected person who is showing symptoms,” said Colin Brown, the agency’s director of clinical and emerging infectious diseases.
“Its public health risk remains very low,” he added.
Monkeypox is a rare viral disease similar to smallpox in humans.
The World Health Organization defines monkeypox as “a rare disease that occurs mainly in remote areas of central and western Africa near tropical rainforests”.
Although its symptoms are much milder than those of smallpox, with most people recovering within weeks, it “may be fatal in rare cases.”
The Health Security Agency said the infection discovered last week was of a person who had recently traveled to Nigeria, where he is believed to have contracted the infection, before returning to Britain.
Monkeypox in humans was first discovered in 1970 in the Democratic Republic of the Congo, in a 9-year-old boy who lived in an area where smallpox was eradicated in 1968.
The first cases of the disease outside Africa were recorded in 2003, in the midwestern region of the United States.