Enterovirus D68 Subclade B3 Circulation in Senegal, 2016: Detection from Influenza-like Illness and Acute Flaccid Paralysis Surveillance

Sci Rep. 2019 Sep 25;9(1):13881. doi: 10.1038/s41598-019-50470-z.

Abstract

Following the 2014 outbreak, active surveillance of the EV-D68 has been implemented in many countries worldwide. Despite subsequent EV-D68 outbreaks (2014 and 2016) reported in many areas, EV-D68 circulation remains largely unexplored in Africa except in Senegal, where low levels of EV-D68 circulation were first noted during the 2014 outbreak. Here we investigate subsequent epidemiology of EV-D68 in Senegal from June to September 2016 by screening respiratory specimens from ILI and stool from AFP surveillance. EV-D68 was detected in 7.4% (44/596) of patients; 40 with ILI and 4 with AFP. EV-D68 detection was significantly more common in children under 5 years (56.8%, p = 0.016). All EV-D68 strains detected belonged to the newly defined subclade B3. This study provides the first evidence of EV-D68 B3 subclade circulation in Africa from patients with ILI and AFP during a 2016 outbreak in Senegal. Enhanced surveillance of EV-D68 is needed to better understand the epidemiology of EV-D68 in Africa.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adolescent
  • Adult
  • Child
  • Child, Preschool
  • Disease Outbreaks
  • Enterovirus D, Human / pathogenicity*
  • Enterovirus Infections / epidemiology
  • Enterovirus Infections / virology*
  • Female
  • Humans
  • Infant
  • Infant, Newborn
  • Influenza, Human / epidemiology
  • Influenza, Human / virology*
  • Male
  • Middle Aged
  • Molecular Epidemiology / methods
  • Paralysis / epidemiology
  • Paralysis / virology*
  • Phylogeny
  • Respiratory Tract Infections / epidemiology
  • Respiratory Tract Infections / virology
  • Senegal / epidemiology
  • Virus Diseases / epidemiology
  • Virus Diseases / virology
  • Young Adult