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ORIGINAL ARTICLE
Year : 2018  |  Volume : 9  |  Issue : 1  |  Page : 88

A randomized controlled trial of zinc supplementation as adjuvant therapy for dengue viral infection in Thai children


1 Department of Pediatrics, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand
2 Department of Preventive Medicine, Faculty of Medicine, Srinakharinwirot University, Bangkok, Thailand

Correspondence Address:
Sanguansak Rerksuppaphol
Department of Pediatrics, Faculty of Medicine, Srinakhariwirot University, 62 Mo 7, Rangsit-Nakorn Nayok Road, Nakornnayok 26120
Thailand
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ijpvm.IJPVM_367_17

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Background: Zinc deficiency is common in developing countries and increases the risk for several infectious diseases. Low serum zinc levels have been reported in children with dengue virus infection (DVI). This study aimed to assess the effects of zinc supplementation on DVI outcomes. Methods: A double-blinded, randomized trial was conducted in 50 children with dengue fever (DF)/dengue hemorrhagic fever admitted to the pediatric unit of MSMC Srinakharinwirot University Hospital, Thailand, between January 2016 and April 2017. Bis-glycinate zinc or placebo was orally administered three times a day for 5 days or until defervescence. The primary outcome was to evaluate the DVI defervescence phase; the secondary outcome was to assess hospitalization length and presence of severe DVI and zinc deficiency. Results: The mean time of defervescence was 29.2 ± 24.0 h in the supplementation group and 38.1 ± 31.5 h in the placebo group (P = 0.270). Meantime of hospital staying was 62.5 ± 23.8 h in the supplementation group and 84.7 ± 34.0 h in placebo group with the mean difference of hospital staying between groups of 22.2 h (95% confidence interval [CI]: 5.5–38.5 h; P = 0.010). Overall prevalence of zinc deficiency was 46%. Serum zinc levels increased from baseline to the end of the study. the mean gain was 26.4 μg/dL (95% CI: 13.6–39.1 μg/dL) in the supplementation group and 14.4 μg/dL (95% CI: 7.4–21.3 μg/dL) in placebo group. No signs of severe DVI were observed in both groups. Zinc supplementation was well tolerated. Conclusions: Overcoming zinc deficiency among Thai children may reduce DF duration and limit the hospitalization, in addition to other advantages that normal serum zinc levels have on overall children health.


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