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[Epidemic outbreak of tinea corporis due to Microsporum gypseum]
Abstract:
A small epidemic of tinea corporis due to M. gypseum is reported. There were 13 children affected, ages 1-15 years. These children belonged to 6 neighbouring families and all used a common "playground", an empty lot located nearby. Cultures were positive for M. gypseum in the 13 children and the agent was also isolated from 2 soils collected in the playing-ground. Soil isolates were classified as N. gypsea. Clinically, the lesions were circinated and had active borders, they were preferentially located in the trunk. Most children (8/13) had multiple lesions. These and other pertinent aspects are discussed in the text.
Insights
A small outbreak of ringworm (tinea corporis) caused by Microsporum gypseum affected 13 children sharing a common playground. The fungus was isolated from affected children and the surrounding soil, highlighting environmental transmission risks.
Area of Science:
- Dermatology
- Mycology
- Epidemiology
Context:
- A localized outbreak of tinea corporis occurred in children within a community.
- The affected children shared a common outdoor recreational space, suggesting a potential environmental source.
- Microsporum gypseum was identified as the causative agent.
Purpose:
- To report and analyze a small epidemic of tinea corporis in children.
- To identify the etiological agent and its source.
- To describe the clinical presentation and epidemiological factors of the outbreak.
Summary:
- Thirteen children aged 1-15 years from six neighboring families were diagnosed with tinea corporis.
- Microsporum gypseum was cultured from all affected children and from soil samples in their shared playground.
- Clinical manifestations included circinated lesions with active borders, predominantly on the trunk, with most children presenting multiple lesions.
Impact:
- This case study underscores the role of soil as a reservoir for dermatophytes causing human infections.
- It highlights the importance of environmental hygiene in preventing the spread of fungal infections in pediatric populations.
- The findings emphasize the potential for zoonotic and geophilic fungal transmission in shared community spaces.