Following announcements made by the UK Health Security Agency on 7,14,18 and 20 May, I am writing to inform the House that—as of 12 pm on Monday 23 May 2022—a total of 56 monkeypox cases, in three unlinked incidents, have now been confirmed in the UK. Further cases have been identified worldwide, outside the endemic regions of west and central Africa.
Monkeypox virus in the UK is extremely rare and the detection of monkeypox in unlinked cases indicates community transmission. Prior to May 2022, there were three previous domestically acquired cases—two household transmissions related to an imported case and one healthcare worker related to a separate imported case.
In the coming days, I expect that further cases will be detected by the UK Health Security Agency’s expert diagnostic capabilities, working with NHS services to ensure heightened vigilance among healthcare professionals.
The UK was the first country in the world to identify and report this recent emergence of non-endemic cases to the World Health Organisation, which continues to receive reports of further cases in other countries across the globe.
The infection can be passed on through direct contact with monkeypox skin lesions or scabs; contact with clothing or linens—such as bedding or towels—used by an infected person; and potentially by close respiratory contact via coughing/sneezing by an individual with a monkeypox rash. Monkeypox has not previously been described as a sexually transmitted infection, though it can be passed on by direct contact during sex. A notable proportion of cases have been among gay, bisexual and other men who have sex with men.
The virus does not usually spread easily between people without close contact and the risk to the UK population remains low.