Tungiasis

Tungiasis is a parasitic skin disease caused by the female sand flea, Tunga penetrans. This disease is endemic in South America, the Caribbean, sub-Saharan Africa, and India. It is often associated with poverty, inadequate sanitation, and overcrowded living conditions.

Etiology

The causative agent of tungiasis is the female sand flea, Tunga penetrans. The flea is a small, wingless insect that lives in the soil and feeds on warm-blooded hosts. The female flea burrows into the skin of the host, where it lays its eggs. The eggs are then expelled from the body through the feces or urine.

Symptoms

The primary symptom of tungiasis is intense itching and inflammation at the site of the flea bite. This is often accompanied by a black dot at the center of a swollen, red area. Other symptoms may include pain, swelling, and secondary bacterial infections. In severe cases, the disease can lead to complications such as gangrene, sepsis, and tetanus.

Diagnosis

Tungiasis is typically diagnosed based on the characteristic clinical signs and symptoms. The diagnosis can be confirmed by identifying the flea in a skin biopsy or by visualizing the flea with a magnifying glass or microscope.

Treatment

Treatment for tungiasis involves removing the flea and treating the affected area with antiseptics. In some cases, antibiotics may be necessary to treat secondary bacterial infections. Prevention of tungiasis involves avoiding contact with soil in endemic areas and using insect repellent.

Epidemiology

Tungiasis is most common in tropical and subtropical regions, particularly in South America, the Caribbean, sub-Saharan Africa, and India. The disease is closely associated with poverty, inadequate sanitation, and overcrowded living conditions.

See also

• Parasitic skin diseases
• Tropical diseases
• Neglected tropical diseases

Tungiasis Resources
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