Background: Dermatitis linearis is a skin condition that affects both local populations and travelers alike. Dermatitis linearis is caused by some beetles within the subtribe Paederina and manifests as painful lesions, blisters and intense itching. Though outbreaks are widespread, the condition as a whole still remains relatively unknown.
Methods: An extensive search of the existing Paederus literature was conducting in order to elucidate relevant information regarding the occurrence of outbreaks, seasonality, exposure and symptom onset, and management of dermatitis linearis. Special consideration was given to behavioral and environmental factors.
Results: Epidemics of dermatitis linearis are most commonly observed during the rainy season or after particularly hot and humid weather patterns. Symptom onset is typically delayed 6-48 h after exposure. The most common symptoms are stinging, burning and itching, with later development of erythematous plaques and blisters. Though symptoms of dermatitis linearis resolve spontaneously, wet compresses, antihistamines and topical steroid ointments and lotions are recommended to alleviate symptoms.
Conclusions: Dermatitis linearis in travelers and local populations can be prevented through minimizing or modifying sources of artificial light, using pesticide-treated nets near beds and lights, general housekeeping and vegetation maintenance, and by raising awareness regarding the conditions caused by Paederus.
Keywords: Dermatitis linearis; Nairobi fly; Paederus.
Published by Oxford University Press International Society of Travel Medicine 2015. This work is written by US Government employees and is in the public domain in the US.