Guidance

HAIRs risk assessments: mosquitoes and ticks

This page contains the Human Animal Infections and Risk Surveillance group (HAIRs) risk assessments relevant to mosquitoes and ticks.

• From: UK Health Security Agency and Centre for Climate and Health Security
• Published: 6 March 2025

Applies to England

Main resources for HAIRs:

• HAIRS risk assessment process
• Appendix A. Risk review statement template
• Appendix B. Assessing the quality of evidence and confidence in the risk
• Appendix C. Zoonotic risk algorithms (with accessible text versions)
• Appendix D. Emerging infection algorithms (with accessible text versions)
• Appendix E. Risk management options

HAIRs for mosquitoes:

• HAIRs risk assessment: Zika Virus
• HAIRs risk assessment: Chikungungya
• HAIRs risk assessment: West Nile virus
• HAIRs risk assessment: Dengue fever
• HAIRS risk assessment: Usutu virus

HAIRs for ticks:

• HAIRS risk assessment: emerging tick-borne bacteria in the UK
• HAIRS risk assessment: Crimean-Congo haemorrhagic fever (CCHF)
• HAIRS risk assessment: tick-borne encephalitis

Published 6 March 2025