Phylogenetic analysis of Mycobacterium bovis reveals animal and zoonotic tuberculosis spread between Morocco and European countries.

Livestock production is a fundamental pillar of the Moroccan economy. Infectious diseases of cattle and other species represent a significant threat to the livestock industry, animal health, and food safety. Bovine tuberculosis (bTB), mainly caused by Mycobacterium bovis, generates considerable dire...

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Main Authors: Hind Yahyaoui Azami, Claudia Perea, Tod Stuber, Mohammed Bouslikhane, Jaouad Berrada, Hamid Aboukhassib, Alberto Oscar Allepuz Palau, Ana C Reis, Mónica V Cunha, Tyler C Thacker, Suelee Robbe-Austerman, Liliana C M Salvador, Frederick D Quinn
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-02-01
Series:PLoS Neglected Tropical Diseases
Online Access:https://doi.org/10.1371/journal.pntd.0011982
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author Hind Yahyaoui Azami
Claudia Perea
Tod Stuber
Mohammed Bouslikhane
Jaouad Berrada
Hamid Aboukhassib
Alberto Oscar Allepuz Palau
Ana C Reis
Mónica V Cunha
Tyler C Thacker
Suelee Robbe-Austerman
Liliana C M Salvador
Frederick D Quinn
author_facet Hind Yahyaoui Azami
Claudia Perea
Tod Stuber
Mohammed Bouslikhane
Jaouad Berrada
Hamid Aboukhassib
Alberto Oscar Allepuz Palau
Ana C Reis
Mónica V Cunha
Tyler C Thacker
Suelee Robbe-Austerman
Liliana C M Salvador
Frederick D Quinn
author_sort Hind Yahyaoui Azami
collection DOAJ
description Livestock production is a fundamental pillar of the Moroccan economy. Infectious diseases of cattle and other species represent a significant threat to the livestock industry, animal health, and food safety. Bovine tuberculosis (bTB), mainly caused by Mycobacterium bovis, generates considerable direct and indirect economic losses, and an underestimated human health burden caused by zoonotic transmission. Previous studies have suggested likely M. bovis transmission links between Morocco and Southern Europe, however, limitations inherent with the methods used prevented definitive conclusions. In this study, we employed whole genome sequencing analysis to determine the genetic diversity of the first 55 M. bovis whole-genomes in Morocco and to better define the phylogenetic links between strains from Morocco and a large dataset from related and neighboring countries. With a total of 780 M. bovis sequences extracted from cattle, wildlife or humans and representing 36 countries, we discovered two new M bovis spoligotypes in Morocco and that the Moroccan clonal complexes are classified as belonging to Europe or Unknown, supporting previous studies that the Sahara Desert might be playing a key role in preventing M. bovis transmission between North Africa and Sub-Saharan Africa. Furthermore, our analysis showed a close M. bovis genetic relationship between cattle from Morocco and cattle from Spain, France, Portugal and Germany, and from cattle in Morocco and humans in Italy, Germany, and the UK. These results suggest that animal trade and human migration between Morocco and these countries might be playing a role in disease transmission. Our study benefits from a large sample size and a rich dataset that includes sequences from cattle, wildlife and humans from Morocco and neighboring countries, enabling the delineation of M. bovis genetic links across countries and host-species. Our study calls for further investigation of animal and zoonotic TB spread in Morocco and in other countries, which is important to inform future TB control measures at the animal-human interface.
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spelling doaj-art-039bebf651594ee8b3c7a5966aa440ea2025-08-20T03:28:10ZengPublic Library of Science (PLoS)PLoS Neglected Tropical Diseases1935-27271935-27352025-02-01192e001198210.1371/journal.pntd.0011982Phylogenetic analysis of Mycobacterium bovis reveals animal and zoonotic tuberculosis spread between Morocco and European countries.Hind Yahyaoui AzamiClaudia PereaTod StuberMohammed BouslikhaneJaouad BerradaHamid AboukhassibAlberto Oscar Allepuz PalauAna C ReisMónica V CunhaTyler C ThackerSuelee Robbe-AustermanLiliana C M SalvadorFrederick D QuinnLivestock production is a fundamental pillar of the Moroccan economy. Infectious diseases of cattle and other species represent a significant threat to the livestock industry, animal health, and food safety. Bovine tuberculosis (bTB), mainly caused by Mycobacterium bovis, generates considerable direct and indirect economic losses, and an underestimated human health burden caused by zoonotic transmission. Previous studies have suggested likely M. bovis transmission links between Morocco and Southern Europe, however, limitations inherent with the methods used prevented definitive conclusions. In this study, we employed whole genome sequencing analysis to determine the genetic diversity of the first 55 M. bovis whole-genomes in Morocco and to better define the phylogenetic links between strains from Morocco and a large dataset from related and neighboring countries. With a total of 780 M. bovis sequences extracted from cattle, wildlife or humans and representing 36 countries, we discovered two new M bovis spoligotypes in Morocco and that the Moroccan clonal complexes are classified as belonging to Europe or Unknown, supporting previous studies that the Sahara Desert might be playing a key role in preventing M. bovis transmission between North Africa and Sub-Saharan Africa. Furthermore, our analysis showed a close M. bovis genetic relationship between cattle from Morocco and cattle from Spain, France, Portugal and Germany, and from cattle in Morocco and humans in Italy, Germany, and the UK. These results suggest that animal trade and human migration between Morocco and these countries might be playing a role in disease transmission. Our study benefits from a large sample size and a rich dataset that includes sequences from cattle, wildlife and humans from Morocco and neighboring countries, enabling the delineation of M. bovis genetic links across countries and host-species. Our study calls for further investigation of animal and zoonotic TB spread in Morocco and in other countries, which is important to inform future TB control measures at the animal-human interface.https://doi.org/10.1371/journal.pntd.0011982
spellingShingle Hind Yahyaoui Azami
Claudia Perea
Tod Stuber
Mohammed Bouslikhane
Jaouad Berrada
Hamid Aboukhassib
Alberto Oscar Allepuz Palau
Ana C Reis
Mónica V Cunha
Tyler C Thacker
Suelee Robbe-Austerman
Liliana C M Salvador
Frederick D Quinn
Phylogenetic analysis of Mycobacterium bovis reveals animal and zoonotic tuberculosis spread between Morocco and European countries.
PLoS Neglected Tropical Diseases
title Phylogenetic analysis of Mycobacterium bovis reveals animal and zoonotic tuberculosis spread between Morocco and European countries.
title_full Phylogenetic analysis of Mycobacterium bovis reveals animal and zoonotic tuberculosis spread between Morocco and European countries.
title_fullStr Phylogenetic analysis of Mycobacterium bovis reveals animal and zoonotic tuberculosis spread between Morocco and European countries.
title_full_unstemmed Phylogenetic analysis of Mycobacterium bovis reveals animal and zoonotic tuberculosis spread between Morocco and European countries.
title_short Phylogenetic analysis of Mycobacterium bovis reveals animal and zoonotic tuberculosis spread between Morocco and European countries.
title_sort phylogenetic analysis of mycobacterium bovis reveals animal and zoonotic tuberculosis spread between morocco and european countries
url https://doi.org/10.1371/journal.pntd.0011982
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