Further Improvement in the Control of Bovine Tuberculosis Recurrence in Ireland

Overview

Journal Vet Rec

Publisher Wiley

Specialty Veterinary Medicine

Date 2018 Sep 2

PMID 30171099

Citations 5

Authors

Erik Houtsma

Tracy Ann Clegg

Margaret Good

Simon J More

Affiliations

Soon will be listed here.

Abstract

Ongoing objective assessment of national bovine tuberculosis (bTB) policy in Ireland is important to monitor efforts towards improved bTB control. The study objective was to investigate temporal trends in the risk of herd recurrence. The study included all herds derestricted following a bTB episode ending in 1998, 2008 or 2012. The respective 'study periods' were up to the end of 2001 for 1998-derestricted herds, to the end of 2011 for 2008-derestricted herds, and to the end of 2015 for 2012-derestricted herds. A multivariable Cox proportional-hazard model was developed to examine time to next restriction. The results from the model showed a continuing significant decreasing trend in herd recurrence of bTB in Ireland from 1998 until 2015: herds derestricted in 2008 were 0.75 (95 per cent CI 0.68 to 0.82) times as likely to develop a further restriction compared with 1998 herds, and herds derestricted in 2012 were 0.85 (95per cent CI 0.76 to 0.95) times as likely as 2008 herds. However, despite significant improvements, recurrence of bTB remains a concern, with 30.2 per cent (95 per cent CI 28.0 to 32.4 per cent) of herds derestricted in 2012 being re-restricted over the subsequent three years. Further work is needed to address the two key drivers of herd recurrence, namely residual infection and local reinfection.

Citing Articles

Bovine Tuberculosis: The Emergence of a New Wildlife Maintenance Host in Ireland.

Kelly D, Mullen E, Good M Front Vet Sci. 2021; 8:632525.

PMID: 33842575 PMC: 8027074. DOI: 10.3389/fvets.2021.632525.

A Bayesian analysis of a Test and Vaccinate or Remove study to control bovine tuberculosis in badgers (Meles meles).

Arnold M, Courcier E, Stringer L, McCormick C, Pascual-Linaza A, Collins S PLoS One. 2021; 16(1):e0246141.

PMID: 33508004 PMC: 7842978. DOI: 10.1371/journal.pone.0246141.

Bovine Tuberculosis () Outbreak Duration in Cattle Herds in Ireland: A Retrospective Observational Study.

Byrne A, Barrett D, Breslin P, Madden J, OKeeffe J, Ryan E Pathogens. 2020; 9(10).

PMID: 33027882 PMC: 7650827. DOI: 10.3390/pathogens9100815.

Bovine tuberculosis breakdown duration in cattle herds: an investigation of herd, host, pathogen and wildlife risk factors.

Milne G, Allen A, Graham J, Lahuerta-Marin A, McCormick C, Presho E PeerJ. 2020; 8:e8319.

PMID: 32117602 PMC: 7003687. DOI: 10.7717/peerj.8319.

The bovine tuberculosis cluster in north County Sligo during 2014-16.

Doyle R, Clegg T, McGrath G, Tratalos J, Barrett D, Lee A Ir Vet J. 2018; 71:24.

PMID: 30534362 PMC: 6262969. DOI: 10.1186/s13620-018-0135-z.

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