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Amber cold health alert issued for North East and West, and Yorkshire and the Humber. Yellow cold alert issued the rest of England.

The amber alert affects North East, North West and Yorkshire and the Humber. The yellow alert affects the rest of England. Both alerts are in place from 12pm Mon 17 Nov until 8am Sat 22 Nov. Please see the Weather health alerts page.

Entry title:

Emerging infections and zoonoses

Last updated on Thursday, 13 November 2025 at 09:30am

An emerging infectious disease can either be a newly recognised infectious disease or a known disease with a reported incidence increasing over the past 20 years in a specific place, or among a specific population.

A zoonotic infection is a disease caused by pathogens (like viruses, bacteria, or parasites) transmitted from animals to humans, either directly (for example, through contact) or indirectly (for example, through vectors like mosquitoes).

Between 60% and 80% of emerging infections are derived from animal sources.

  • Mpox

    Monthly case numbers of mpox clade Ib and clade IIb

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