# The Health Security (EU Exit) Regulations 2021, Regulation 5: Serious cross-border health threats


(1) For the purposes of these Regulations, “serious cross-border health threat” means a life-threatening or otherwise serious health threat specified in paragraph (2) which—
(a) spreads or entails a significant risk of spreading across the borders of the United Kingdom and at least one member State; or
(b) may necessitate a coordinated response by the UK authorities in order to ensure a high level of human health protection.
(2) The following are specified for the purposes of paragraph (1)—
(a) threats of biological origin consisting of—
(i) communicable diseases;
(ii) related special health matters;
(b) biotoxins or other harmful biological agents not related to communicable diseases;
(c) threats of chemical origin;
(d) threats of environmental origin;
(e) threats of unknown origin;
(f) events which may constitute public health emergencies of international concern under the IHR provided that they fall under one of the categories of threats set out in sub-paragraphs (a) to (d).

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Source: https://www.legislation.gov.uk/ukdsi/2021/9780348224375/regulation/5 (the official version)
Page: https://openlegislation.uk/draft-health-security-eu-exit-regulations-2021/regulation-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.