Mycobacteria

Barletta, Raúl G.; Steffen, David

doi:10.1002/9781119650836.ch36

Cited by 2 publications

(5 citation statements)

References 32 publications

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“…31 In the present study, all four strains have this biochemical component (carotenoid). 42–45 This peak has a high intensity in Chryseobacterium sp. IS, Mycolicibacterium sp.…”

Section: Resultsmentioning

confidence: 99%

Differentiation of different dibenzothiophene (DBT) desulfurizing bacteria via surface-enhanced Raman spectroscopy (SERS)

Anwer,

Shahzadi,

Nawaz

et al. 2024

RSC Adv.

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“…31 In the present study, all four strains have this biochemical component (carotenoid). 42–45 This peak has a high intensity in Chryseobacterium sp. IS, Mycolicibacterium sp.…”

Section: Resultsmentioning

confidence: 99%

Differentiation of different dibenzothiophene (DBT) desulfurizing bacteria via surface-enhanced Raman spectroscopy (SERS)

Anwer,

Shahzadi,

Nawaz

et al. 2024

RSC Adv.

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“…While vertical transmission of MAP is possible, the typical route of infection is fecal–oral. After ingestion, the pathogen is found within macrophages in the submucosa of the ileocecal area and its surrounding lymph nodes ( 1 ). Hence, typical samples for the diagnosis of MAP include feces, intestinal lymph nodes, the ileocecal valve, or intestines ( 8 ).…”

Section: Discussionmentioning

confidence: 99%

“…The family Mycobacteriaceae contains over 188 species, most of which are saprophytes found in the environment. Saprophytic mycobacteria belong to the group of non-tuberculous mycobacteria (NTM), and many of them are opportunistic pathogens ( 1 ). In wild animals, a variety of different NTM can be found.…”

Section: Introductionmentioning

confidence: 99%

“…paratuberculosis (MAP), which causes the chronic disease paratuberculosis in ruminants. In cattle, the disease causes diarrhea, weight loss, and reduced milk yield, which leads to economic losses ( 1 ). Furthermore, cattle are thought to be the source of infections of MAP in red deer ( 6 ).…”

Section: Introductionmentioning

confidence: 99%

“…Another important group of mycobacteria is the Mycobacterium tuberculosis complex (MTBC), which causes tuberculosis in humans and animals ( 1 ). Bovine tuberculosis is caused by M. bovis and M. caprae .…”

Section: Introductionmentioning

confidence: 99%

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Isolation of Mycobacterium avium ssp. paratuberculosis and other non-tuberculous mycobacteria from head lymph nodes of wild ruminants and badgers in Switzerland

Lienhard,

Friedel,

Paganini

et al. 2024

Front. Vet. Sci.

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IntroductionThe family Mycobacteriaceae contains over 188 species, most of which are saprophytic non-tuberculous mycobacteria (NTM). In wildlife, a variety of different NTM can be found, with different reports about their pathogenic potential. A pathogenic member of NTM is Mycobacterium avium ssp. paratuberculosis (MAP), which can infect farmed and wild ruminants. It causes paratuberculosis which is an economically important chronic disease. Infected farm animals are considered to be the source of infection in wild animals. Wildlife, on the other hand, is thought to be a reservoir for certain members of the Mycobacterium tuberculosis complex (MTBC), such as M. caprae, which causes tuberculosis in cattle and red deer.MethodsSwitzerland implemented a surveillance program for tuberculosis in wild animals in 2014. Here, we describe the results from the mycobacterial culture of lymph node samples collected from red deer, roe deer, chamois, ibex, and badgers collected within this surveillance program from 2020 to 2022. Overall, samples from 548 animals were checked macroscopically for tuberculosis-like lesions.ResultsIn total, 88 animals (16.1%), which either had lesions in their lymph nodes or were male and aged older than 5 years, were investigated using mycobacterial culture. In total, 25 animals (28.4%) were positive for NTM, while no MTBC was detected. The most often identified NTM was M. vaccae, followed by M. avium. Most animals positive for NTM did not show any macroscopic lesions. Furthermore, MAP was isolated from the head lymph nodes of two male red deer. Neither of the two MAP-positive animals had any macroscopic lesions in their head lymph nodes or any other signs of disease.DiscussionThe shooting sites of the two MAP-positive animals were located in Alpine pastures used for grazing of cattle during summer, which confirms that species transmission can occur when contaminated pastures are used by different species. In agreement with other studies, the occurrence of MAP in red deer was quite low. However, so far, MAP was mostly isolated from feces and intestinal lymph nodes of wild animals. This is the first detection of MAP in the head lymph nodes of red deer in Switzerland.

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Mycobacteria

Cited by 2 publications

References 32 publications

Differentiation of different dibenzothiophene (DBT) desulfurizing bacteria via surface-enhanced Raman spectroscopy (SERS)

Differentiation of different dibenzothiophene (DBT) desulfurizing bacteria via surface-enhanced Raman spectroscopy (SERS)

Isolation of Mycobacterium avium ssp. paratuberculosis and other non-tuberculous mycobacteria from head lymph nodes of wild ruminants and badgers in Switzerland

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