Epidemiology of Ebola virus disease transmission among health care workers in Sierra Leone, May to December 2014: a retrospective descriptive study

Hdl Handle:
http://hdl.handle.net/10147/579624
Title:
Epidemiology of Ebola virus disease transmission among health care workers in Sierra Leone, May to December 2014: a retrospective descriptive study
Authors:
Olu, Olushayo; Kargbo, Brima; Kamara, Sarian; Wurie, Alie H; Amone, Jackson; Ganda, Louisa; Ntsama, Bernard; Poy, Alain; Kuti-George, Fredson; Engedashet, Etsub; Worku, Negusu; Cormican, Martin; Okot, Charles; Yoti, Zabulon; Kamara, Kande-Bure; Chitala, Kennedy; Chimbaru, Alex; Kasolo, Francis
Citation:
BMC Infectious Diseases. 2015 Oct 13;15(1):416
Publisher:
BioMed Central
Issue Date:
13-Oct-2015
URI:
http://dx.doi.org/10.1186/s12879-015-1166-7; http://hdl.handle.net/10147/579624
Abstract:
Abstract Background Anecdotal evidence suggests that much of the continuing infection of health care workers (HCWs) with Ebola virus during the current outbreak in Sierra Leone has occurred in settings other than Ebola isolation units, and it is likely that some proportion of acquisition by HCWs occurs outside the workplace. There is a critical need to define more precisely the pathways of Ebola infection among HCWs, to optimise measures for reducing risk during current and future outbreaks. Methods We conducted a retrospective descriptive study of Ebola acquisition among health workers in Sierra Leone during May–December 2014. The data used were obtained mainly from the national Ebola database, a cross-sectional survey conducted through administration of a structured questionnaire to infected HCWs, and key informant interviews of select health stakeholders. Results A total of 293 HCWs comprising 277 (95 %) confirmed, 6 (2 %) probable, and 10 (3 %) suspected cases of infection with Ebola virus were enrolled in the study from nine districts of the country. Over half of infected HCWs (153) were nurses; others included laboratory staff (19, 6.5 %), doctors (9, 3.1 %), cleaners and porters (9, 3.1 %), Community Health Officers (8, 2.7 %), and pharmacists (2, 0.7 %). HCW infections were mainly reported from the Western Area (24.9 %), Kailahun (18.4 %), Kenema (17.7 %), and Bombali (13.3 %) districts. Almost half of the infected HCWs (120, 47.4 %) believed that their exposure occurred in a hospital setting. Others believed that they were exposed in the home (48, 19 %), at health centres (45, 17.8 %), or at other types of health facilities (13, 5.1 %). Only 27 (10.7 %) of all HCW infections were associated with Ebola virus disease (EVD) isolation units. Over half (60 %, 150) of infected HCWs said they had been trained in infection prevention and control prior to their infection, whereas 34 % (85) reported that they had not been so trained. Conclusions This study demonstrated the perception that most HCW infections are associated with general health care and home settings and not with dedicated EVD settings, which should provide substantial reassurance to HCWs that measures in place at dedicated EVD facilities generally provide substantial protection when fully adhered to.
Item Type:
Article
Language:
en
Keywords:
EBOLA VIRUS; INFECTIOUS DISEASE; PUBLIC HEALTH; EPIDEMIOLOGY

Full metadata record

DC FieldValue Language
dc.contributor.authorOlu, Olushayoen
dc.contributor.authorKargbo, Brimaen
dc.contributor.authorKamara, Sarianen
dc.contributor.authorWurie, Alie Hen
dc.contributor.authorAmone, Jacksonen
dc.contributor.authorGanda, Louisaen
dc.contributor.authorNtsama, Bernarden
dc.contributor.authorPoy, Alainen
dc.contributor.authorKuti-George, Fredsonen
dc.contributor.authorEngedashet, Etsuben
dc.contributor.authorWorku, Negusuen
dc.contributor.authorCormican, Martinen
dc.contributor.authorOkot, Charlesen
dc.contributor.authorYoti, Zabulonen
dc.contributor.authorKamara, Kande-Bureen
dc.contributor.authorChitala, Kennedyen
dc.contributor.authorChimbaru, Alexen
dc.contributor.authorKasolo, Francisen
dc.date.accessioned2015-10-14T10:57:13Zen
dc.date.available2015-10-14T10:57:13Zen
dc.date.issued2015-10-13en
dc.identifier.citationBMC Infectious Diseases. 2015 Oct 13;15(1):416en
dc.identifier.urihttp://dx.doi.org/10.1186/s12879-015-1166-7en
dc.identifier.urihttp://hdl.handle.net/10147/579624en
dc.description.abstractAbstract Background Anecdotal evidence suggests that much of the continuing infection of health care workers (HCWs) with Ebola virus during the current outbreak in Sierra Leone has occurred in settings other than Ebola isolation units, and it is likely that some proportion of acquisition by HCWs occurs outside the workplace. There is a critical need to define more precisely the pathways of Ebola infection among HCWs, to optimise measures for reducing risk during current and future outbreaks. Methods We conducted a retrospective descriptive study of Ebola acquisition among health workers in Sierra Leone during May–December 2014. The data used were obtained mainly from the national Ebola database, a cross-sectional survey conducted through administration of a structured questionnaire to infected HCWs, and key informant interviews of select health stakeholders. Results A total of 293 HCWs comprising 277 (95 %) confirmed, 6 (2 %) probable, and 10 (3 %) suspected cases of infection with Ebola virus were enrolled in the study from nine districts of the country. Over half of infected HCWs (153) were nurses; others included laboratory staff (19, 6.5 %), doctors (9, 3.1 %), cleaners and porters (9, 3.1 %), Community Health Officers (8, 2.7 %), and pharmacists (2, 0.7 %). HCW infections were mainly reported from the Western Area (24.9 %), Kailahun (18.4 %), Kenema (17.7 %), and Bombali (13.3 %) districts. Almost half of the infected HCWs (120, 47.4 %) believed that their exposure occurred in a hospital setting. Others believed that they were exposed in the home (48, 19 %), at health centres (45, 17.8 %), or at other types of health facilities (13, 5.1 %). Only 27 (10.7 %) of all HCW infections were associated with Ebola virus disease (EVD) isolation units. Over half (60 %, 150) of infected HCWs said they had been trained in infection prevention and control prior to their infection, whereas 34 % (85) reported that they had not been so trained. Conclusions This study demonstrated the perception that most HCW infections are associated with general health care and home settings and not with dedicated EVD settings, which should provide substantial reassurance to HCWs that measures in place at dedicated EVD facilities generally provide substantial protection when fully adhered to.en
dc.language.isoenen
dc.publisherBioMed Centralen
dc.subjectEBOLA VIRUSen
dc.subjectINFECTIOUS DISEASEen
dc.subjectPUBLIC HEALTHen
dc.subjectEPIDEMIOLOGYen
dc.titleEpidemiology of Ebola virus disease transmission among health care workers in Sierra Leone, May to December 2014: a retrospective descriptive studyen
dc.typeArticleen
dc.language.rfc3066enen
dc.rights.holderOlu et al.en
dc.date.updated2015-10-14T06:01:49Zen
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