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A smattering of monkeypox cases in Britain has prompted authorities to offer a smallpox vaccine to some healthcare workers and others who may have been exposed, as a handful more cases were confirmed in parts of Europe. Monkeypox is a usually mild viral illness, characterised by symptoms of fever as well as a distinctive bumpy rash. There are two main strains: the Congo strain, which is more severe - with up to 10 per cent mortality - and the West African strain, which has a fatality rate of about one per cent First identified in monkeys, the viral disease typically spreads through close contact and largely occurs in west and central Africa. It has rarely spread elsewhere, so this fresh spate of cases outside the continent has triggered concern. In the United Kingdom, nine cases of the West African strain have been reported so far. There isn't a specific vaccine for monkeypox, but a smallpox vaccine does offer some protection, a UK Health Security Agency (UKHSA) spokesperson said. Data shows that vaccines that were used to eradicate smallpox are up to 85 per cent effective against monkeypox, according to the World Health Organisation.

British health agencies have secured funding to develop a standardised approach to test the performance of vaccines being used or in development against monkeypox, days after the World Health Organization labelled the growing outbreak a global health emergency. The Coalition for Epidemic Preparedness Innovations (CEPI) said it would give up to $375,000 to the Medicines and Healthcare products Regulatory Agency (MHRA) and Health Security Agency (UKHSA) to develop standard tools to assess the strength and duration of immune responses generated by current vaccines, and for tests used to detect monkeypox antibody levels. Apart from administration fees, these tools will be made freely available to the global scientific community, paving the way for a common standardised assessment between countries documenting vaccine performance against monkeypox, CEPI said. Until this year, the viral disease has rarely spread outside Africa where it is endemic. But reports of a handful of cases in Britain in early May signalled that the outbreak had moved into Europe. So far, there have been more than 16,000 confirmed cases of monkeypox in more than 75 countries.