The Joint Biosecurity Centre (JBC) is a scientific body which seeks to advise United Kingdom government policy as part of the response to outbreaks of COVID-19, such as on testing deployment, international travel, and the UK 'COVID-19 alert level'. Its existence was announced by Prime Minister Boris Johnson in May 2020.[1][2] The body has been part of the UK Health Security Agency since the establishment of that agency on 1 April 2021.[3]