Learning from water treatment and hygiene interventions in response to a hepatitis E outbreak in an open setting in Chad
MetadataShow full item record
JournalJournal of Water and Health
AbstractIn September 2016, Médecins Sans Frontières responded to a hepatitis E (HEV) outbreak in Chad by implementing water treatment and hygiene interventions. To evaluate the coverage and use of these interventions, we conducted a cross-sectional study in the community. Our results showed that 99% of households interviewed had received a hygiene kit from us, aimed at improving water handling practice and personal hygiene and almost all respondents had heard messages about preventing jaundice and handwashing. Acceptance of chlorination of drinking water was also very high, although at the time of interview, we were only able to measure a safe free residual chlorine level (free chlorine residual (FRC) ≥0.2 mg/L) in 43% of households. Households which had refilled water containers within the last 18 hours, had sourced water from private wells or had poured water into a previously empty container, were all more likely to have a safe FRC level. In this open setting, we were able to achieve high coverage for chlorination, hygiene messaging and hygiene kit ownership; however, a review of our technical practice is needed in order to maintain safe FRC levels in drinking water in households, particularly when water is collected from multiple sources, stored and mixed with older water.
- Does community-wide water chlorination reduce hepatitis E virus infections during an outbreak? A geospatial analysis of data from an outbreak in Am Timan, Chad (2016-2017).
- Authors: Lenglet A, Ehlkes L, Taylor D, Fesselet JF, Nassariman JN, Ahamat A, Chen A, Noh I, Moustapha A, Spina A
- Issue date: 2020 Aug
- Seroprevalence and risk factors of recent infection with hepatitis E virus during an acute outbreak in an urban setting in Chad, 2017.
- Authors: Vernier L, Lenglet A, Hogema BM, Moussa AM, Ariti C, Vollmer S, Irwin A, Alfani P, Sang S, Kamau C
- Issue date: 2018 Jun 26
- Assessment of water, sanitation and hygiene interventions in response to an outbreak of typhoid fever in Neno District, Malawi.
- Authors: Bennett SD, Lowther SA, Chingoli F, Chilima B, Kabuluzi S, Ayers TL, Warne TA, Mintz E
- Issue date: 2018
- Evidence-based chlorination targets for household water safety in humanitarian settings: Recommendations from a multi-site study in refugee camps in South Sudan, Jordan, and Rwanda.
- Authors: Ali SI, Ali SS, Fesselet JF
- Issue date: 2021 Feb 1
- A large outbreak of Hepatitis E virus genotype 1 infection in an urban setting in Chad likely linked to household level transmission factors, 2016-2017.
- Authors: Spina A, Lenglet A, Beversluis D, de Jong M, Vernier L, Spencer C, Andayi F, Kamau C, Vollmer S, Hogema B, Irwin A, Ngueremi Yary R, Mahamat Ali A, Moussa A, Alfani P, Sang S
- Issue date: 2017