Human parechoviruses may act as opportunistic pathogens in acute diarrhea, particularly affecting vulnerable populations such as young children and the elderly.
Absence of association should not alter diarrhea testing; leaves open opportunistic role in children and elderly.
Human parechoviruses (HPeVs) are prevalent in young children; however, their effects are incompletely understood. We investigated the prevalence, genotype distribution, and phylogeny of HPeVs in individuals with diarrhea (n = 430) and healthy controls (n = 93) by the analysis of stool specimens collected from July 2013 to December 2014; 51 (11.86%) and 6 (6.45%) specimens were HPeV positive, respectively. HPeV1A occurred in 28 (6.51%) and 6 (6.45%) individuals with diarrhea and controls, respectively, whereas HPeV1B (3.95%), HPeV3 (0.23%), HPeV4 (0.70%), and HPeV14 (a rare genotype, 0.47%) were only detected in individuals with diarrhea. There was no significant difference in the rate of HPeV detection between the 2 groups; however, the mean age of HPeV infection was significantly lower in males. We conclude that HPeVs may be opportunistic pathogens associated with acute diarrhea. Immunocompromised individuals, such as children aged under 2 years and the elderly, could be vulnerable to HPeV infections.
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Chen et al. (2018) studied this question.
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