Investigation of two suspected diarrhoeal-illness outbreaks in Northern Cape and KwaZulu-Natal provinces, South Africa, April–July 2013: The role of rotavirus

Southern African Journal of Infectious Diseases

 
 
Field Value
 
Title Investigation of two suspected diarrhoeal-illness outbreaks in Northern Cape and KwaZulu-Natal provinces, South Africa, April–July 2013: The role of rotavirus
 
Creator Shonhiwa, Andronica M. Ntshoe, Genevie Crisp, Noreen Olowolagba, Ayo J. Mbuthu, Vusi Taylor, Maureen B. Thomas, Juno Page, Nicola
 
Subject Division of Public Health Surveillance and Response, Outbreak Response Unit diarrhoeal illness; outbreak; rotavirus; rotavirus vaccine; South Africa.
Description Background: Suspected diarrhoeal-illness outbreaks affecting mostly children 5 years were investigated between May and July 2013 in Northern Cape province (NCP) and KwaZulu-Natal (KZN) province. This study describes the epidemiological, environmental and clinical characteristics and diarrhoeal-illnesses causative agent(s).Methods: A descriptive cross-sectional study was conducted. Cases were patients presenting at healthcare facilities with diarrhoeal-illness between 09 April and 09 July 2013 in NCP and 01 May and 31 July 2013 in KZN. Laboratory investigations were performed on stools and water samples using microscopy, culture and sensitivity screening and molecular assays.Results: A total of 953 cases including six deaths (case fatality rate [CFR]: 0.6%) were recorded in the Northern Cape province outbreak. Children 5 years accounted for 58% of cases. Enteric viruses were detected in 51% of stools, with rotavirus detected in 43%. The predominant rotavirus strains were G3P[8] (45%) and G9P[8] (42%). Other enteric viruses were detected, with rotavirus co-infections (63%). No enteric pathogens detected in water specimens. KwaZulu-Natal outbreak: A total of 1749 cases including 26 deaths (CFR: 1.5%) were recorded. Children 5 years accounted for 95% of cases. Rotavirus was detected in 55% of stools; other enteric viruses were detected, mostly as rotavirus co-infections. The predominant rotavirus strains were G2P[4] (54%) and G9P[8] (38%).Conclusion: Although source(s) of the outbreaks were not identified, the diarrhoeal-illnesses were community-acquired. It is difficult to attribute the outbreaks to one causative agent(s) because of rotavirus co-infections with other enteric pathogens. While rotavirus was predominant, the outbreaks coincided with the annual rotavirus season.
 
Publisher AOSIS Publishing
 
Contributor National Institute for Communicable Diseases
Date 2020-07-22
 
Type info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion — Outbreak investigation
Format text/html application/epub+zip text/xml application/pdf
Identifier 10.4102/sajid.v35i1.159
 
Source Southern African Journal of Infectious Diseases; Vol 35, No 1 (2020); 8 pages 2313-1810 2312-0053
 
Language eng
 
Relation
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https://sajid.co.za/index.php/sajid/article/view/159/321 https://sajid.co.za/index.php/sajid/article/view/159/320 https://sajid.co.za/index.php/sajid/article/view/159/322 https://sajid.co.za/index.php/sajid/article/view/159/319
 
Coverage District Municipality and Metropolitan Municipality Northern Cape province; KwaZulu-Natal Province Diarrhoea-illness; Outbreak; rotavirus
Rights Copyright (c) 2020 Andronica M. Shonhiwa, Genevie Ntshoe, Noreen Crisp, Ayo J. Olowolagba, Vusi Mbuthu, Maureen B. Taylor, Juno Thomas, Nicola Page https://creativecommons.org/licenses/by/4.0
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