Locksley L. McV. Messam

ORCID: 0000-0001-5791-555X
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About
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Research Areas
  • Human-Animal Interaction Studies
  • Rabies epidemiology and control
  • Mycobacterium research and diagnosis
  • Animal Disease Management and Epidemiology
  • Virology and Viral Diseases
  • Tuberculosis Research and Epidemiology
  • Blood donation and transfusion practices
  • Geographies of human-animal interactions
  • Microbial infections and disease research
  • Veterinary Oncology Research
  • Veterinary Practice and Education Studies
  • Meta-analysis and systematic reviews
  • Healthcare cost, quality, practices
  • Viral Infections and Vectors
  • Myxozoan Parasites in Aquatic Species
  • Veterinary Equine Medical Research
  • Zoonotic diseases and public health
  • Entomological Studies and Ecology
  • Animal Nutrition and Physiology
  • Data-Driven Disease Surveillance
  • Organ Donation and Transplantation
  • Blood transfusion and management
  • Helminth infection and control
  • Infectious Diseases and Mycology
  • Immune responses and vaccinations

University College Dublin
2016-2025

Society for Endocrinology
2024

University of California, Davis
2003-2018

University of the West Indies System
2010

St. George's University
2009

University of Illinois Urbana-Champaign
2006

Four covariate selection approaches were compared: a directed acyclic graph (DAG) full model and 3 DAG change-in-estimate combined procedures. Twenty-five scenarios with case-control samples generated from 10 simulated populations in order to address the performance of these procedures presence confounders various strengths under misspecification omission or inclusion nonconfounders. Performance was evaluated by standard error, bias, square root mean-squared 95% confidence interval coverage....

10.1093/aje/kwp035 article EN American Journal of Epidemiology 2009-04-10

In contrast to European countries, the overwhelming majority of dogs in U.S. are neutered (including spaying), usually done before one year age. Given importance gonadal hormones growth and development, this cultural invites an analysis multiple organ systems that may be adversely affected by neutering. Using a single breed-specific dataset, objective was examine variables gender age at time neutering versus leaving gonadally intact, on all diseases occurring with sufficient frequency for...

10.1371/journal.pone.0055937 article EN cc-by PLoS ONE 2013-02-13

A field trial was conducted to investigate the impact of oral vaccination free-living badgers against natural-transmitted Mycobacterium bovis infection. For a period three years were captured over seven sweeps in zones and assigned for with lipid-encapsulated BCG vaccine (Liporale-BCG) or placebo. Badgers enrolled Zone administered placebo while all C vaccinated BCG. middle area, B, randomly 50:50 treatment Treatment each zone remained blinded until end study period. The outcome interest...

10.1371/journal.pone.0168851 article EN cc-by PLoS ONE 2017-01-25

The COVID-19 pandemic has affected us in numerous ways and may consequently impact our relationships with pet dogs cats. We conducted a longitudinal survey to examine the temporal patterns of owner-pet relationship, stress, loneliness during four phases pandemic: 1) pre-pandemic (February 2020), 2) lockdown (April June 3) reopening (September December 4) recovery (January 2021 2021). also investigated effect ownership on stress loneliness, by considering set priori causal assumptions. In...

10.1371/journal.pone.0284101 article EN cc-by PLoS ONE 2023-04-26

Campylobacter jejuni is the leading bacterial food-borne pathogen within European Union (EU), and poultry meat primary route for transmission to humans.This study examined impact of partial depopulation (thinning), season, farm performance (economic, hygiene, biosecurity) on prevalence in Irish broilers over a 13-month period. Ten caecal samples were taken per flock, total 211 flocks from 23 farms during duration study. was isolated enumerated according modified published ISO methods...

10.3402/iee.v6.31454 article EN cc-by-nc Infection Ecology & Epidemiology 2016-01-01

Ovine pulmonary adenocarcinoma (OPA), caused by Jaagsiekte sheep retrovirus (JSRV), is characterised the development of invariably fatal lung tumours primarily in adult sheep. High infection rates and disease prevalence can develop during initial flocks, leading to on-farm economic losses animal welfare issues with advanced disease. The has been reported Ireland notifiable, but presence JSRV never confirmed using molecular methods this country. Additionally, due difficulties ante-mortem...

10.1186/s13620-017-0111-z article EN cc-by Irish Veterinary Journal 2017-12-01

We conducted a veterinary clinic-based retrospective cohort study aimed at identifying child-, dog-, and home-environment factors associated with dog bites to children aged 5-15 years old living in the same home as Kingston, Jamaica (236) San Francisco, USA (61). Secondarily, we wished compare these risk for general public. Participant information was collected via interviewer-administered questionnaire using proxy respondents. Data were analyzed log-binomial regression estimate relative...

10.3389/fvets.2018.00066 article EN cc-by Frontiers in Veterinary Science 2018-05-04

Vaccination of badgers with Mycobacterium bovis Bacille Calmette-Guérin (BCG) has been shown to protect against tuberculosis in experimental trials. During the 3-year County Kilkenny BCG vaccine field study, were treated orally placebo (100% Zone A), C) or randomly assigned 50%: 50% treatment (Zone B). At end 275 removed from trial area and subjected detailed post-mortem examination followed by histology culture for M. bovis. Among these badgers, 83 (30.2%) captured first time across three...

10.1111/tbed.14254 article EN Transboundary and Emerging Diseases 2021-07-31

Abstract Objective —To determine whether findings of urinalyses could be used to reliably distinguish gonadectomized cats with urine-marking behavior from those no problem urination. Design —Case control study. Animals —58 (47 males and 11 females) (ie, marking vertical surfaces) 39 (26 13 without urination or urinary tract-associated conditions. Procedure —Urine was collected by cystocentesis all cats. Findings urinemarking were analyzed statistically for sexrelated differences between that...

10.2460/javma.2003.223.457 article EN Journal of the American Veterinary Medical Association 2003-08-15

Abstract Background The serial interval is the period of time between onset symptoms in an infector and infectee important parameter which can impact on estimation reproduction number. Whilst several parameters influencing infection transmission are expected to be consistent across populations, vary within populations over time. Therefore, local estimates preferable for use epidemiological models developed at a regional level. We used data collected as part national contact tracing process...

10.1186/s12889-021-10868-9 article EN cc-by BMC Public Health 2021-04-27

Legislation pertaining to canine ownership in Ireland maintains a one-health perspective by establishing minimum standard of care for dogs while safeguarding human health and wellbeing. However, public awareness this legislation has not been measured. The goals study were first, estimate compare the level awareness, among dog owners non-dog owners, that eight responsibilities are prescribed law Ireland. Second, determine if gender modifies differences between non-owners, third whether itself...

10.1186/s13620-021-00208-z article EN cc-by Irish Veterinary Journal 2022-01-05

Abstract Understanding and correctly interpreting statistical results presented in scientific articles is a required skill for practicing evidence‐based veterinary medicine. A prerequisite doing so the adequate reporting of journals. However, most authors publications determine importance their findings based on significance (ie, P < .05), indicating that neither limitations using values inference nor existence more appropriate alternatives are widely appreciated This deficiency knowledge...

10.1111/jvim.17258 article EN cc-by-nc-nd Journal of Veterinary Internal Medicine 2024-12-02

Reliable information about national pet dog populations is an important contributor to informed decision-making, both by governments and welfare organisations. In some countries, there improved understanding of aspects the population, but as yet limited published available in Ireland. The current study reviews utility existing data inform our recent changes population Ireland, including biological organisational processes.Based on licencing microchipping registration, numbers have remained...

10.1186/s13620-022-00223-8 article EN cc-by Irish Veterinary Journal 2022-07-14
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