Occurrence of Mycobacterium spp. and other pathogens in lymph nodes of slaughtered swine and wild boars (Sus scrofa)

Research in Veterinary Science
Gustavo Henrique Batista LaraFernando José Paganini Listoni

Abstract

Mycobacterium spp. and other pathogens were investigated in 258 swine lymph nodes (129 with and 129 without apparent lesions), and 120 lymph nodes (60 with and 60 without lesions) from wild boars (Sus scrofa). A total of lymph nodes from swine and wild boars were collected of different animals. Submaxillar and mesenteric lymph nodes were submitted to microbiological examination and colonies suggestive of Mycobacterium spp. (alcohol-acid bacilli) were submitted to PCR Restriction Assay (PRA). In swine with lymphadenitis, Mycobacterium spp. (24.1%) and Rhodococcus equi (13.2%) were the most prevalent microorganisms, while in lymph nodes without lesions were identified a complex of microorganisms, including of environmental mycobacteria. In wild boars with lymphadenitis, ß-haemolytic Streptococcus (10.0%), Mycobacterium spp (8.4%) and R. equi (6.6%) were the most frequent. Among mycobacterias were identified predominantly Mycobacterium avium subspecies type 1 (48.3%) and M. avium subspecies type 2 (16.1%), followed by Mycobacterium intracellulare, Mycobacterium szulgai,Mycobacterium fortuitum, Mycobacterium gordonae, Mycobacterium simiae, Mycobacterium nonchromogenicum and Mycobacterium intracellulare type 2.

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Citations

Feb 11, 2012·Journal of Clinical Microbiology·Vincenzo Di MarcoCinzia Marianelli
Oct 22, 2013·Applied and Environmental Microbiology·Evelyne MannStephan Schmitz-Esser
Mar 28, 2013·BMC Research Notes·Agueda Castagna de VargasShinji Takai
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Sep 30, 2015·PloS One·Fernando Cardoso-TosetInmaculada Luque
Jun 2, 2018·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Ryan SchafbuchJosé Ramos-Vara
May 21, 2017·Applied and Environmental Microbiology·Ursula M McCormackPeadar G Lawlor
Nov 27, 2018·PloS One·Lorraine MicheletMaría Laura Boschiroli
Feb 5, 2014·Journal of Food Protection·Alena LorencovaIva Slana
Jul 13, 2019·Frontiers in Veterinary Science·Soledad BarandiaranAndrés M Perez
Oct 28, 2017·Frontiers in Microbiology·Alberto OliveiraAlice R Wattam
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Aug 13, 2021·Frontiers in Veterinary Science·Soledad BarandiaranLuciano Francisco La Sala

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