Analysing the outbreaks of leptospirosis after floods in Kerala, India.
Assessment
Climate
Disaster
Epidemiology
Flood
Incidence
Leptospirosis
Outbreak
Journal
International journal of health geographics
ISSN: 1476-072X
Titre abrégé: Int J Health Geogr
Pays: England
ID NLM: 101152198
Informations de publication
Date de publication:
13 May 2024
13 May 2024
Historique:
received:
27
11
2023
accepted:
30
04
2024
medline:
14
5
2024
pubmed:
14
5
2024
entrez:
13
5
2024
Statut:
epublish
Résumé
A growing number of studies have linked the incidence of leptospirosis with the occurrence of flood events. Nevertheless, the interaction between flood and leptospirosis has not been extensively studied to understand the influence of flood attributes in inducing new cases. This study reviews leptospirosis cases in relation to multiple flood occurrences in Kerala, India. Leptospirosis data were obtained for three years: 2017 (non-flood year) and two years with flooding-2018 (heavy flooding) and 2019 (moderate flooding). We considered the severity of flood events using the discharge, duration and extent of each flooding event and compared them with the leptospirosis cases. The distribution of cases regarding flood discharge and duration was assessed through descriptive and spatiotemporal analyses, respectively. Furthermore, cluster analyses and spatial regression were completed to ascertain the relationship between flood extent and the postflood cases. This study found that postflood cases of leptospirosis can be associated with flood events in space and time. The total cases in both 2018 and 2019 increased in the post-flood phase, with the increase in 2018 being more evident. Unlike the 2019 flood, the flood of 2018 is a significant spatial indicator for postflood cases. Our study shows that flooding leads to an increase in leptospirosis cases, and there is stronger evidence for increased leptospirosis cases after a heavy flood event than after a moderate flooding event. Flood duration may be the most important factor in determining the increase in leptospirosis infections.
Identifiants
pubmed: 38741103
doi: 10.1186/s12942-024-00372-9
pii: 10.1186/s12942-024-00372-9
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
11Informations de copyright
© 2024. The Author(s).
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