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Background <p>Scabies is a high-burden neglected tropical disease, particularly in crowded, resource-limited settings, where children are disproportionately affected. Confirmation of scabies includes the use of clinical diagnosis supported by laboratory confirmation. This study was conducted to provide a laboratory confirmation for a clinically suspected scabies outbreak.</p> Methods <p>Skin scrapings were collected from 13 clinically suspected cases and transported to the National Public Health Laboratories. Samples were processed using the simple saline mount technique. A case was considered positive when a mite, egg, or fecal pellet was identified with microscopy.</p> Case presentation <p>A suspected scabies outbreak was reported from Daara Madina Suwaneh, a quranic boarding school located in Brufut Heights in the West Coast Region. A team from the Ministry of Health was deployed to confirm the scabies outbreak. A total of 13 male children were screened, with a mean age of 11.6 years (SD = 1.94) and an average symptom duration of 4.3 weeks (SD = 0.48). The hands and knees were the most frequently affected sites, observed in 38.5% of cases. Laboratory analysis found mite eggs in only one child, and no mites were detected in any of the samples, resulting in a positivity rate of 7.7%. All the cases were treated with 10% Benzyl Benzoate lotion, as it is the recommended medication for the treatment of children by the World Health Organization, and they fully recovered. This report highlights the important role of a simple saline mount, a low-cost routine parasitological technique, in supporting clinical suspicion of a scabies outbreak.</p> Conclusions <p>This laboratory confirmation has provided supportive evidence for clinical diagnosis of scabies at a quranic school in The Gambia. The low laboratory positivity likely reflects challenges associated with the use of the normal saline method for sample processing, instead of potassium hydroxide, the most reliable method. These findings highlight the importance of timely sampling and improved diagnostic capacity for disease outbreak confirmation in resource-limited settings.</p>

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A case report of medical laboratory confirmation of suspected scabies outbreak at Daara Madina Suwaneh, a quranic school located in Brufut Heights, The Gambia, 2025

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  • 发表日期：

    2026年1月16日

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  • Abdoulie M. Sanyang,
  • Modou Colley,
  • Lamin Sanneh,
  • Mustapha Baldeh,
  • Kebba Jadama,
  • Abou Kebbeh,
  • Alphonse Mendy,
  • Saikou Maffuge Fatajo,
  • Sheriffo Jagne,
  • Amadou Woury Jallow,
  • Momodou Nyassi,
  • Bakary Sanneh

摘要

Background

Scabies is a high-burden neglected tropical disease, particularly in crowded, resource-limited settings, where children are disproportionately affected. Confirmation of scabies includes the use of clinical diagnosis supported by laboratory confirmation. This study was conducted to provide a laboratory confirmation for a clinically suspected scabies outbreak.

Methods

Skin scrapings were collected from 13 clinically suspected cases and transported to the National Public Health Laboratories. Samples were processed using the simple saline mount technique. A case was considered positive when a mite, egg, or fecal pellet was identified with microscopy.

Case presentation

A suspected scabies outbreak was reported from Daara Madina Suwaneh, a quranic boarding school located in Brufut Heights in the West Coast Region. A team from the Ministry of Health was deployed to confirm the scabies outbreak. A total of 13 male children were screened, with a mean age of 11.6 years (SD = 1.94) and an average symptom duration of 4.3 weeks (SD = 0.48). The hands and knees were the most frequently affected sites, observed in 38.5% of cases. Laboratory analysis found mite eggs in only one child, and no mites were detected in any of the samples, resulting in a positivity rate of 7.7%. All the cases were treated with 10% Benzyl Benzoate lotion, as it is the recommended medication for the treatment of children by the World Health Organization, and they fully recovered. This report highlights the important role of a simple saline mount, a low-cost routine parasitological technique, in supporting clinical suspicion of a scabies outbreak.

Conclusions

This laboratory confirmation has provided supportive evidence for clinical diagnosis of scabies at a quranic school in The Gambia. The low laboratory positivity likely reflects challenges associated with the use of the normal saline method for sample processing, instead of potassium hydroxide, the most reliable method. These findings highlight the importance of timely sampling and improved diagnostic capacity for disease outbreak confirmation in resource-limited settings.