Transmission of brucellosis from elk to cattle and bison, Greater Yellowstone area, U.S.A., 2002-2012.

Bovine brucellosis has been nearly eliminated from livestock in the United States. Bison and elk in the Greater Yellowstone Area remain reservoirs for the disease. During 1990-2002, no known cases occurred in Greater Yellowstone Area livestock. Since then, 17 transmission events from wildlife to livestock have been investigated.

Spatial analysis to assess the relationship between human and bovine brucellosis in South Korea, 2005-2010.

The first case of human brucellosis in South Korea was reported in 2002, and cases of human infection continue to occur. Although an association between human and bovine brucellosis has been identified, the spatial relationship has not been studied in South Korea. Here, we analysed the spatial patterns of human and bovine brucellosis retrieved from the human and veterinary surveillance data, as well as the spatial correlation between human and bovine brucellosis and associated factors that contribute to its occurrence. The risk of human brucellosis was analysed using a Bayesian spatial model with potential risk factors. Our results show that, for both human and bovine brucellosis, hotspots were clustered in the southeast regions of Korea, whereas coldspots were clustered in the northwest regions of Korea. Our study suggests that the risk of human brucellosis increases in rural regions with the highest risk of bovine brucellosis. Collaborative strategies between human and veterinary health sectors (e.g, public health intervention and region-specific eradication programs for bovine brucellosis) would reduce the burden of brucellosis in South Korea.

Narrative overview of animal and human brucellosis in Morocco: intensification of livestock production as a driver for emergence?

Brucellosis is one of the most widespread zoonoses in the world caused by several species of the genus Brucella. The disease, eradicated in many developed countries, is a re-emerging neglected zoonosis endemic in several zones especially in the Mediterranean region, impacting on human health and livestock production. A One Health approach could address brucellosis control in Morocco but scarcity of reliable epidemiological data, as well as underreporting, hinders the implementation of sustainable control strategies. Surveillance and control policies implemented by the Moroccan government in domestic animals (cattle and small ruminants) in the last few decades are assessed for disease impact. This study considers the origins of animal brucellosis in Morocco and the potential for emergence of brucellosis during a shift from extensive to intensive livestock production.

[History of the eradication of bovine brucellosis in the Czech Republic]. / Historie eradikace bovinní brucelózy v Ceské republice.

In the Czech republic, the program of recovery of the livestock from brucellosis caused by the micro-organisms Brucella abortus was successfully completed in 1964. The campaign started in 1959 by the exploration of the complete cattle population by agglutination tests. Incidence of the disease was 211 positive cases for each 100 thousands, prevalence was 0.676% (20,481 animal in 654 foci of 34 districts). The prevalence was significantly higher in large cattle units. Tens of new cases of the human brucellosis infections were reported. The process of sanitation was first based on the elimination of infected animals. In the later phase the more radical method was employed--the whole herds with infected individuals were eliminated and replaced. During the recovery program more than 41 thousands of infected animals were eliminated. It required solving many complex methodological, legislative, organisational, economical and social problems. Serological test applied to more the half of the livestock population together with epizootiological, epidemiological and laboratory investigation helped to detect all foci. Eradication brought about substantial improvement of the productive and reproductive features of the cattle and eliminated the risks of infection with this zoonosis to the human population.

Control of zoonoses in Britain: past, present, and future.

In the past zoonoses that caused serious human illness also caused serious loss of animal production, but there is growing awareness of the public health problems arising from infections that cause little or no such loss. Much can be learnt from the history of the control of bovine tuberculosis and brucellosis. In both cases there was reluctance to accept that animals were the principal cause of infection, and the earliest attempts at control failed because measures were taken only against clinical cases of the disease. The essential features in control of both infections were: official recognition of a problem, willingness of governments to allocate resources, and cooperation between the medical and veterinary professions. Salmonellosis is the most important zoonotic infection in Britain today, though several Orders have reduced the reservoir of infection in food animals. It is suggested that a national team of doctors should be set up to investigate and control zoonoses, that this team should be answerable to a central agency, and that it should build up close working relationships with the nominated officers of the veterinary profession.

Epidemiologic classics.

Epidemiology is the study of the relationships of the various factors determining the frequency and distribution of disease in a human community; the field of medicine concerned with the determination of the specific causes of localized outbreaks such as hepatitis,..., or any other disease of recognized etiology.