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Health guidanceUnited Kingdom with regional context

What is alpha-gal syndrome after a tick bite?

Alpha-gal syndrome is an allergy to a sugar in mammalian products associated with certain tick bites, especially in the United States.

Reviewed by VuxLore® Knowledge Team For Everyone

Short answer

Alpha-gal syndrome is an allergy to a sugar in mammalian products associated with certain tick bites, especially in the United States.

At a glance

Alpha-gal syndrome is an allergy to a sugar in mammalian products associated with certain tick bites, especially in the United States. Vectors and pathogens vary geographically, so a full exposure history matters.

Key takeaways

• Alpha-gal syndrome is an allergy to a sugar in mammalian products associated with certain tick bites, especially in the United States.

• Vectors and pathogens vary geographically, so a full exposure history matters.

• This article is educational and cannot diagnose, exclude or treat illness. Use NHS 111, a GP, emergency services or the corresponding local service according to symptom severity.

Direct answer

Alpha-gal syndrome is an allergy to a sugar in mammalian products associated with certain tick bites, especially in the United States.

Use it in context

Vectors and pathogens vary geographically, so a full exposure history matters.

Practical next step

This article is educational and cannot diagnose, exclude or treat illness. Use NHS 111, a GP, emergency services or the corresponding local service according to symptom severity.

Sources and further reading

European Centre for Disease Prevention and Control: Tick-borne diseases

US Centers for Disease Control and Prevention: Tickborne Diseases of the United States

World Health Organization Regional Office for Europe: Public health advice on ticks and tick-borne diseases