Key result
Human parechovirus type A3 infection presents with severe lower extremity myalgia in a 7-year-old child.
This case report describes a 7-year-old child presenting with severe lower extremity myalgia associated with Human parechovirus type A3 infection.
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May warrant HPeV-A3 testing in pediatric severe myalgia; extends known clinical spectrum beyond infancy.
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Onoda et al. (2026) studied this question. Human parechovirus type A3 infection presented with severe lower extremity myalgia in a 7-year-old child.
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