Studies of tuberculosis in an in relation to infection in cattle

Sjögren, I; Sutherland, Ian

doi:10.1016/0041-3879(75)90022-7

Cited by 21 publications

(10 citation statements)

References 6 publications

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“…Latency, or dormancy, is a recognised feature of Tb in man, and has been recorded lasting for up to 60 years, when infection acquired in childhood fi nally recrudesced (Sjogren and Sutherland 1975). The NVL presentation in animals is likely to include such latent cases or merely early-stage infection.…”

Section: The Host Speciesmentioning

confidence: 99%

A review of infection of wildlife hosts withMycobacterium bovisand the diagnostic difficulties of the ‘no visible lesion’ presentation

Gavier‐Widén¹,

Cooke

Gallagher³

et al. 2009

New Zealand Veterinary Journal

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The pathology, frequency and diagnostic implications of 'no visible lesion' (NVL) tuberculosis (Tb), i.e. infection with Mycobacterium bovis in the absence of macroscopic lesions, are described in a wide taxonomic range of wildlife hosts. Information collected and evaluated on the definition and occurrence of NVL Tb, histopathological characteristics, post-mortem techniques to detect minimal lesions, and diagnostic difficulties revealed most Tb-infected individuals with NVL had minute tuberculous lesions, which were difficult to see by eye. Acid-fast organisms (AFO) were sometimes detected in the lesions. Ideally, mycobacterial culture of pools of lymph nodes and/or oropharyngeal tonsils is necessary for the accurate diagnosis of Tb in the absence of macroscopic lesions. At a very minimum, the diagnostic methods applied for studying the prevalence of Tb in the population should be clearly described, to allow comparison between studies.

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Section: The Host Speciesmentioning

confidence: 99%

A review of infection of wildlife hosts withMycobacterium bovisand the diagnostic difficulties of the ‘no visible lesion’ presentation

Gavier‐Widén¹,

Cooke

Gallagher³

et al. 2009

New Zealand Veterinary Journal

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“…1998). Latency can last for decades in humans (Sjogren & Sutherland 1975) and can probably be measured in years in the badger (Gallagher et al . 1998).…”

Section:    mentioning

confidence: 99%

Social organization and movement influence the incidence of bovine tuberculosis in an undisturbed high‐density badgerMeles melespopulation

Vicente

Delahay²,

Walker³

et al. 2007

Journal of Animal Ecology

117

133

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Summary The culling of European badgersMeles meles has been a central part of attempts to control bovine tuberculosis (TB) in British cattle for many years. Recent results, however, indicate that this approach could in practice enhance disease spread. 2. This paper looks at the relationship between TB incidence and badger ecology in a high-density population in south-west England, which has been the subject of a longterm intensive study. The principal aims were to relate the probability of TB incidence, as detected by culture of clinical samples (i.e. excretion of bacilli), at the level of the individual and of the social group to demographic processes, movement, social organization and disease dynamics. 3. The probability of an individual being an incident case was greater in groups where TB was already present, although this was less influential in groups that were subject to some instability in numbers. Both individuals and groups were more likely to be incident cases where the social group was diminishing in size, although no relationship was observed with group size itself. This suggests that the process of group size reduction rather than group size per se has most influence on disease dynamics. The likelihood that either an individual or a group was an incident case was positively correlated with both individual and group-level movement. When the proportion of females in a social group was high, the positive association between movement and incidence was found to be more pronounced and there was a significantly higher probability of incident cases among males. 4. These relationships highlight the importance of social structure in driving TB transmission dynamics in this stable, high-density badger population. The results support the idea that a stable social structure mitigates against new incident cases of disease, and are consistent with the contention that badger culling may create the social circumstances for enhanced transmission of TB.

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“…It should be noted that, during the 1940s and 1950s, adults might have possessed certain protection against pulmonary TB because of previous exposure to M. bovis in milk as children [51]. This would not be generally the case today, as drinking unpasteurised milk is rare in the UK.…”

Section: Box 2 Health Economics Of Btb Controlmentioning

confidence: 99%

Public health and bovine tuberculosis: what's all the fuss about?

Torgerson¹,

Torgerson²

2010

Trends in Microbiology

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Bovine tuberculosis (bTB) in UK cattle is increasing rapidly. Consequently, the UK Government is spending escalating sums of money in attempts at disease control. We propose that bTB control in cattle is irrelevant as a public health policy. In the UK, cattle-to-human transmission is negligible. Aerosol transmission, the only probable route of human acquisition, occurs at inconsequential levels when milk is pasteurised, even when bTB is highly endemic in cattle. Furthermore, there is little evidence for a positive cost benefit in terms of animal health of bTB control. Such evidence is required; otherwise, there is little justification for the large sums of public money spent on bTB control in the UK.

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Studies of tuberculosis in an in relation to infection in cattle

Cited by 21 publications

References 6 publications

A review of infection of wildlife hosts withMycobacterium bovisand the diagnostic difficulties of the ‘no visible lesion’ presentation

A review of infection of wildlife hosts withMycobacterium bovisand the diagnostic difficulties of the ‘no visible lesion’ presentation

Social organization and movement influence the incidence of bovine tuberculosis in an undisturbed high‐density badgerMeles melespopulation

Public health and bovine tuberculosis: what's all the fuss about?

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