Tuberculosis in wild badgers (Meles meles) in Gloucestershire: pathology

Gallagher, J; Muirhead, RH; Burn, KJ

doi:10.1136/vr.98.1.9

Cited by 88 publications

(60 citation statements)

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“…Outside this were lymphocytes and macrophages and a mild fibroblastic reaction, but no giant cells of Langhans. The cases in this study differed from some of those described by Gallagher, Muirhead & Burn (1976) in that they had not died of tuberculosis, and only very scanty numbers of acid-fast bacilli were seen in all the sections stained by Ziehl-Neelsen's method.…”

Section: Histological Findingscontrasting

confidence: 47%

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Tuberculosis in East Sussex: III. Comparison of post-mortem and clinical methods for the diagnosis of tuberculosis in badgers

Pritchard

Stuart

Wilesmith

et al. 1986

J. Hyg.

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SUMMARYFollowing epidemiological and ecological studies of a defined badger population in an area of East Sussex, removal of all badgers by cage trapping was attempted. Trapping was incomplete due to the activities of protesters. Forty-seven badgers were caught from the eight social groups. All badgers were examined clinically and samples offaeces, urine and tracheal aspirate were taken, together with swabs from any bite wounds, for bacteriological examinations. Forty-five animals were skin tested using whole killed cells of Mycobacterium bovis strain AN5, bovine PPD Weybridge and new human tuberculin. Skin test results were recorded after 24 and 72 h. All badgers were killed and subjected to a post-mortem and bacteriological examination.M. bovis was detected in 10 (21-3 %) badgers at post-mortem and in 2 badgers from clinical samples. Four social groups were infected. Positive skin test results were recorded at 72 h with bovine PPD (2 ,ug and 20 ,ug/ml), strain AN5 (1 mg/ml) and human tuberculin (2 jug/ml), but not with human tuberculin at 20 jug/ml. Histological sections of the skin test reactions showed the cellular types typical of delayed-type hypersensitivity. The skin test reactions observed were neither sensitive nor specific enough to be of practical value.

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Section: Histological Findingscontrasting

confidence: 47%

“…The histological findings in all the tissues examined were typical of 'early lesions' of tuberculosis in badgers as described by Gallagher, Muirhead & Burn (1976). There was typically a mild cellular reaction comprising a small central necrotic focus surrounded by polymorphonuclear leucocytes and epithelioid cells.…”

Section: Histological Findingsmentioning

confidence: 80%

Tuberculosis in East Sussex: III. Comparison of post-mortem and clinical methods for the diagnosis of tuberculosis in badgers

Pritchard

Stuart

Wilesmith

et al. 1986

J. Hyg.

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“…These species develop extensive lesions containing tremendous numbers of bacilli. Excretion of M. bovis has been demonstrated from these species (Gallagher et al, 1976;Jackson et al, 1995;Morris et al, 1994;Nolan and Wilesmith, 1994;Ragg et al, 1995). Thus far, disseminated lesions with high numbers of bacilli have not been found associated with the native Michigan carnivores or omnivores.…”

Section: Discussionmentioning

confidence: 92%

Bovine Tuberculosis in Free-Ranging Carnivores From Michigan

Bruning-Fann

Schmitt

Fitzgerald

et al. 2001

Journal of Wildlife Diseases

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During a survey of carnivores and omnivores for bovine tuberculosis conducted in Michigan (USA) since 1996, Mycobacterium bovis was cultured from lymph nodes pooled from six coyotes (Canis latrans) (four adult female, two adult male), two adult male raccoons (Procyon lotor), one adult male red fox (Vulpes vulpes), and one 1.5-yr-old male black bear (Ursus americanus). One adult, male bobcat (Felis rufus) with histologic lesions suggestive of tuberculosis was negative on culture but positive for organisms belonging to the Mycobacterium tuberculosis complex when tested by polymerase chain reaction. All the tuberculous animals were taken from three adjoining counties where M. bovis is known to be endemic in the free-ranging white-tailed deer (Odocoileus virginianus) population. There were two coyotes, one raccoon, one red fox, and one bobcat infected in Alpena county. Montmorency County had two coyotes and one raccoon with M. bovis. Two coyotes and a bear were infected from Alcona County. These free-ranging carnivores/omnivores probably became infected with M. bovis through consumption of tuberculous deer. Other species included in the survey were opossum (Didelphis virginiana), gray fox (Urocyon cinereoargenteus), and badger (Taxidea taxus); these were negative for M. bovis.

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“…The evidence presented suggests that badgers can cope remarkably well with the chronic infection, to the extent that cubs may be produced and a successful lactation occur. At some point this mechanism appears to fail and massive multiplication of the organism occurs [13,22]. The trigger for this is unknown, although a range of 'stress' factors, such as food shortage, may be postulated.…”

Section: Discussionmentioning

confidence: 99%

Mycobacterium bovis in the European badger (Meles meles): epidemiological findings in tuberculous badgers from a naturally infected population

1993

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SUMMARYThis study investigates the course of tuberculosis in a naturally infected badger population, its impact on the population and the risk of spread to other species in the light of capture data and post-mortem findings from 47 tuberculous badgers, stratified by age group and sex, accrued since 1975. The findings are compared with those for 260 badgers from the same population in whom no evidence of infection was detected. Detailed estimates of seasonal variations in bodyweight for uninfected male and female cub, yearling and adult badgers are presented and compared to the weights at post-mortem examination of the tuberculous badgers, in whom poor condition and weight loss were the principal presenting signs. Lesions were seen especially in the lungs and associated lymph nodes, and in the kidneys. Organisms were detected intermittently in faeces, urine, sputum and discharging bite wounds. Infected animals could survive for nearly 2 years and produce cubs successfully.

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Tuberculosis in wild badgers (Meles meles) in Gloucestershire: pathology

Cited by 88 publications

References 0 publications

Tuberculosis in East Sussex: III. Comparison of post-mortem and clinical methods for the diagnosis of tuberculosis in badgers

Tuberculosis in East Sussex: III. Comparison of post-mortem and clinical methods for the diagnosis of tuberculosis in badgers

Bovine Tuberculosis in Free-Ranging Carnivores From Michigan

Mycobacterium bovis in the European badger (Meles meles): epidemiological findings in tuberculous badgers from a naturally infected population

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