Diverse Epidemiology of Leptospira serovars Notified in New Zealand, 1999-2017

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dc.citation.issue10
dc.citation.volume9
dc.contributor.authorNisa S
dc.contributor.authorWilkinson DA
dc.contributor.authorAngelin-Bonnet O
dc.contributor.authorPaine S
dc.contributor.authorCullen K
dc.contributor.authorWight J
dc.contributor.authorBaker MG
dc.contributor.authorBenschop J
dc.date.available2020-10
dc.date.available2020-10-10
dc.date.issued2020-10-14
dc.description(c) The Author/s
dc.description.abstractLeptospirosis in New Zealand has been strongly associated with animal-contact occupations and with serovars Hardjo and Pomona. However, recent data suggest changes in these patterns, hence, serovar-specific epidemiology of leptospirosis from 1999 to 2017 was investigated. The 19-year average annual incidence is 2.01/100,000. Early (1999-2007) and late (2008-2017) study period comparisons showed a significant increase in notifications with serovar Ballum (IRR: 1.59, 95% CI: 1.22-2.09) in all cases and serovar Tarassovi (IRR: 1.75, 95% CI: 1.13-2.78) in Europeans and a decrease in notifications with serovars Hardjo and Pomona in all cases. Incidences of Ballum peaked in winter, Hardjo peaked in spring and Tarassovi peaked in summer. Incidence was highest in Māori (2.24/100,000) with dominant serovars being Hardjo and Pomona. Stratification by occupation showed meat workers had the highest incidence of Hardjo (57.29/100,000) and Pomona (45.32/100,000), farmers had the highest incidence of Ballum (11.09/100,000) and dairy farmers had the highest incidence of Tarassovi (12.59/100,000). Spatial analysis showed predominance of Hardjo and Pomona in Hawke's Bay, Ballum in West Coast and Northland and Tarassovi in Waikato, Taranaki and Northland. This study highlights the serovar-specific heterogeneity of human leptospirosis in New Zealand that should be considered when developing control and prevention strategies.
dc.description.publication-statusPublished
dc.identifierhttp://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000587466000001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=c5bb3b2499afac691c2e3c1a83ef6fef
dc.identifierARTN 841
dc.identifier.citationPATHOGENS, 2020, 9 (10)
dc.identifier.doi10.3390/pathogens9100841
dc.identifier.eissn2076-0817
dc.identifier.elements-id435398
dc.identifier.harvestedMassey_Dark
dc.publisherMDPI (Basel, Switzerland)
dc.relation.isPartOfPATHOGENS
dc.rightsCC BY
dc.subjectleptospirosis
dc.subjectserovars
dc.subjectNew Zealand
dc.subjectepidemiology
dc.subject.anzsrc1107 Immunology
dc.subject.anzsrc1108 Medical Microbiology
dc.titleDiverse Epidemiology of Leptospira serovars Notified in New Zealand, 1999-2017
dc.typeJournal article
pubs.notesNot known
pubs.organisational-group/Massey University
pubs.organisational-group/Massey University/College of Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Mathematical and Computational Sciences
pubs.organisational-group/Massey University/College of Sciences/School of Veterinary Science
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