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. 2020 Jan;50(1):22-30.
doi: 10.1177/0049475519872580. Epub 2019 Aug 28.

Prevalence of Zika and malaria in patients with fever in secondary healthcare facilities in south-eastern Nigeria

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Prevalence of Zika and malaria in patients with fever in secondary healthcare facilities in south-eastern Nigeria

Akaninyene A Otu et al. Trop Doct. 2020 Jan.

Abstract

We describe the frequency of Zika and malaria among patients presenting with fever to secondary health facilities in Cross River State, Nigeria. Using a cross-sectional, stratified survey design, we randomly selected nine facilities and consecutively recruited 100 participants (aged ≥ 1 year) who presented with fever. On testing blood samples using Biocan qualitative lateral flow immuno-chromatographic cassettes for Zika IgG and IgM, 10% were seropositive for Zika virus (ZIKV) IgM, 12% for ZIKV IgG and 20% for ZIKV IgM, IgG or both. Following microscopy of thick films stained with Giemsa for malaria parasites, 55% were positive for malaria and 15% were positive for both malaria and ZIKV IgM, IgG or both. A moderately negative association between urban and rural household location and seropositivity for ZIKV IgM or IgG was found on logistic regression. Our results clearly indicate a high rate of probable ZIKV and malaria co-incidence in Cross River State. Given the high risk of serious fetal outcomes following ZIKV infection, further epidemiological research and surveillance systems for ZIKV are clearly required.

Keywords: Cross River; Zika; fever; malaria.

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