UKHSA
UK Government agency for infectious disease surveillance and health protection, created in 2021.
UKHSA, which isolated 20 Britons from the MV Hondius hantavirus cluster in May 2026, reported on 3 September the first breeding colony of Aedes aegypti, the main Dengue mosquito, ever found in the UK.
Last refreshed: 4 October 2026 · Appears in 1 active topic
With mpox clade Ib spreading locally in Europe, how ready is UKHSA for sustained community transmission?
Timeline for UKHSA
Found and began treating an Aedes aegypti breeding site
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Pandemics and BiosecurityBackground
UKHSA (the UK Health Security Agency) is the UK Government's agency for health protection and infectious disease surveillance. It was set up in 2021 as the successor to Public Health England and answers to the Department of Health and Social Care. Professor Susan Hopkins has been chief executive since September 2025. It runs national laboratories, genomic sequencing and notifiable disease reporting, and works with ECDC and WHO on outbreaks that cross borders.
Its 2026 work has run from imported disease to clusters at home. By 13 August it had tied 207 confirmed Salmonella Enteritidis cases to one genomic cluster linked to food eaten away from home, with eggs the strongest signal.
The mosquito find matters most for the future. A member of the public reported Aedes aegypti in east London through UKHSA's Mosquito Watch scheme in August, and on 3 September the agency confirmed the species breeding in the UK for the first time. It rated the public risk as very low and is treating the site with larvicide to eradicate the colony. The find shows a carrier of Dengue, Zika and Chikungunya reaching a country whose climate has so far kept it out.
The agency ran a hantavirus repatriation
UKHSA's largest 2026 operation came from the MV Hondius cruise ship. On 10 May the UK flew 20 British nationals from Tenerife to Arrowe Park Hospital in Wirral for 45 days of isolation against Andes hantavirus, the only hantavirus known to pass between people. A suspected case on Tristan da Cunha, a South Atlantic territory with no hospital, needed a military parachute drop of medical supplies.
The agency monitored British passengers and their close contacts through the incubation window. By 24 May the cluster stood at 12 cases and three deaths, with passengers traced to 12 countries, and the slow rise in cases suggested little onward spread.
The agency ran a hantavirus repatriation
How did UKHSA respond to the MV Hondius hantavirus outbreak?
Reference
What is the difference between mpox clade I and clade II?
What is UKHSA and what does it do?
What does UKHSA monitor for in terms of pandemic threats?
What is UKHSA and what replaced Public Health England?
Recently resolved
Is mpox clade Ib spreading in Europe in 2026?
Are Aedes aegypti mosquitoes breeding in London?
How many cases are in the UK Salmonella egg outbreak?
Were any British people on the MV Hondius hantavirus ship?
Who runs the UK Health Security Agency?
