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Effectiveness of multi-stage scrubbers in reducing emissions of air pollutants from pig houses
Emissions of air pollutants from livestock houses may raise environmental problems and pose hazards to public health. They can be reduced by scrubbers installed at the air outlets of livestockExpand
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Transmission of pseudorabies virus within pig populations is independent of the size of the population
Abstract Epidemic models are often used to analyse the transmission of infectious diseases. These models, however, differ in whether they assume that transmission of a pathogen increases withExpand
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A deterministic epidemic model taking account of repeated contacts between the same individuals
We introduce a certain population contact structure and derive, in three different ways, the final size equation for a quite general superimposed epidemic process. The contact structure isExpand
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Predicting future costs of High-Pathogenicity Avian Influenza epidemics: large versus small uncertainties
Every five years, the Dutch government and the poultry sector agree on how the direct costs of epidemics in poultry, should they occur, will be shared. In the agreement for 2005–2009 the maximumExpand
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Monitoring programmes for paratuberculosis-unsuspected cattle herds, based on quantification of between-herd transmission
A mathematical model was developed to calculate the between-herd transmission of paratuberculosis, expressed as the reproduction ratio Rh, which is the average number of new infected herds caused byExpand
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Within-herd transmission of paratuberculosis and the possible role of infectious calves
This study shows the results of an analysis of infection data of 21 Dutch dairy farms, where during 10 years each culled animal was tested for the presence of Mycobacterium avium subsp.Expand
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Effectiveness of control measures on the transmission of avian influenza virus (H7N7) between flocks
On 28 February 2003 an epidemic of fowl plague started in The Netherlands, caused by a highly pathogenic avian influenza virus (HPAIV) of type H7N7. The epidemic started in the ‘Gelderse Vallei’,Expand
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