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Parvovirus B19 — SCE Dermatology MCQ

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HardCutaneous InfectionParvovirus B19SCE Dermatology

Two residents in a care home are diagnosed with classical scabies. A third symptomatic resident is identified three days before the planned coordinated treatment round. What is the best immediate action?

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Correct answer: CTreat this resident now while coordinating the wider contact-treatment programme today

Explanation lettering: B = shown as A · E = shown as B · D = shown as C · A = shown as D · C = shown as E

D is correct. UKHSA guidance says a diagnosed case should be treated as soon as possible and should not wait for wider mass treatment. Prompt treatment reduces symptoms, complications and onward transmission. In parallel, the setting must identify close contacts, coordinate treatment rounds, ensure correct whole-body application or dosing, and repeat treatment at the recommended interval where applicable. Restricting therapy to microscopy-positive cases misses clinically diagnosed infestation, while cleaning without treating people cannot terminate transmission. Infection prevention measures and temporary contact precautions are proportionate to the setting and case type.

Reference: UKHSA: management of scabies cases and outbreaks: https://www.gov.uk/government/publications/scabies-management-advice-for-health-professionals