China CDC weekly · 2025
An Outbreak of Dermatitis Caused by Redoa leucoscela Larvae in A Scenic Area - Tongren City, Guizhou Province, China, July-August 2024.
СтатьяНазвание и аннотация: Перевод в очереди
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Xiao Mei, Ren Dafei, Ning Leting, Yang Qi, Fei Tian
Аннотация
WHAT IS ALREADY KNOWN ABOUT THIS TOPIC?: Redoa leucoscela (R. leucoscela) Collenette (Lepidoptera: Erebidae), releases urticating setae during larval molting. These setae disperse through aquatic and aerial pathways and can trigger allergic reactions upon dermal contact. Clinical manifestations include pruritic dermatitis with stinging sensations and papular lesions; untreated cases may progress to systemic reactions or secondary infections.
WHAT IS ADDED BY THIS REPORT?: Between July 10 and August 16, 2024, a dermatitis outbreak caused by R. leucoscela occurred in Y Village, Tongren City, Guizhou Province. A total of 32 cases were identified, including 30 residents and 2 tourists. This report provides the first epidemiological evidence linking R. leucoscela larvae to dermatitis outbreaks through rigorous case-control methodology.
WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE?: During peak R. leucoscela larvae infestation periods, local authorities must implement integrated dermatitis surveillance and larval eradication programs, coupled with prominent warning signage in high-risk zones (riversides, swimming areas) advising against water contact and minimizing exposure to P. stenoptera tree foliage to prevent outbreak recurrence. Concurrently, health promotion campaigns must prioritize eco-awareness education for tourism stakeholders and the public, advocating for eco-conscious tourism behaviors to minimize anthropogenic habitat disruption, thereby achieving sustainable tourism-conservation synergy.
WHAT IS ADDED BY THIS REPORT?: Between July 10 and August 16, 2024, a dermatitis outbreak caused by R. leucoscela occurred in Y Village, Tongren City, Guizhou Province. A total of 32 cases were identified, including 30 residents and 2 tourists. This report provides the first epidemiological evidence linking R. leucoscela larvae to dermatitis outbreaks through rigorous case-control methodology.
WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE?: During peak R. leucoscela larvae infestation periods, local authorities must implement integrated dermatitis surveillance and larval eradication programs, coupled with prominent warning signage in high-risk zones (riversides, swimming areas) advising against water contact and minimizing exposure to P. stenoptera tree foliage to prevent outbreak recurrence. Concurrently, health promotion campaigns must prioritize eco-awareness education for tourism stakeholders and the public, advocating for eco-conscious tourism behaviors to minimize anthropogenic habitat disruption, thereby achieving sustainable tourism-conservation synergy.