Allergic reactions associated with medically relevant arthropods.

Area of Science:

• Medical Entomology
• Allergology
• Public Health

Background:

• Vector-borne diseases and arthropod-associated allergies pose a growing global health burden.
• Diverse allergic reactions to arthropod bites complicate diagnosis, prognosis, and prevention.
• Arthropod-associated allergies are often underdiagnosed, necessitating improved surveillance and management strategies.

Purpose of the Study:

• To illustrate the varied symptomatology of arthropod-associated allergies through case studies.
• To highlight the role of alpha-gal syndrome (AGS) in reactions to arthropod bites.
• To provide recommendations for controlling allergic symptoms and advancing prevention.

Main Methods:

• Described five clinical cases of reactions to arthropod bites (robber fly, ticks).
• Collected symptom information from patients and medical doctors.
• Assessed for alpha-gal syndrome (AGS) using anti-alpha-gal IgE antibody titres.

Main Results:

• Cases involved patients from Spain and the U.S.A. bitten by various arthropods.
• Two patients were diagnosed with AGS, one with anaphylaxis following a tick bite.
• Observed significant variation in symptoms depending on host and arthropod factors.

Conclusions:

• Allergic reactions to arthropod bites are variable and influenced by host and arthropod factors.
• Recommendations are proposed for managing allergic symptoms and associated risks.
• Emphasized the need for enhanced prevention and control of arthropod-associated allergies.