2020
DOI: 10.3389/fvets.2020.00500
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Modeling Economic Effects of Vaccination Against Porcine Reproductive and Respiratory Syndrome: Impact of Vaccination Effectiveness, Vaccine Price, and Vaccination Coverage

Abstract: Porcine reproductive and respiratory syndrome (PRRS) causes substantial financial losses in pig farms and economic losses to societies worldwide. Vaccination against PRRS virus (PRRSV) is a common intervention in affected farms. The aim of this study was to assess the economic impact and profitability of potential new PRRS vaccines with improved efficacy at animal, herd, and national level. Two vaccination strategies were modeled; (i) mass vaccination of sows only (MS) and (ii) mass vaccination of sows and vac… Show more

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Cited by 19 publications
(20 citation statements)
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“…On the other hand, the prophylactic #2 strategy would be independent from diagnostics costs, and thus implementation could be considered more feasible by the swine industry. Before recommendations can be made, future longitudinal studies need to evaluate the economics of each vaccination strategy taking into consideration the cost to stabilize an infected farm (Linhares et al, 2015; Nathues et al, 2017; Thomann et al, 2020). Until diagnostic techniques become more accessible and easier to perform, the effectiveness of strategies involving the identification of PRRSV in downstream pig operations remains questionable.…”
Section: Discussionmentioning
confidence: 99%
“…On the other hand, the prophylactic #2 strategy would be independent from diagnostics costs, and thus implementation could be considered more feasible by the swine industry. Before recommendations can be made, future longitudinal studies need to evaluate the economics of each vaccination strategy taking into consideration the cost to stabilize an infected farm (Linhares et al, 2015; Nathues et al, 2017; Thomann et al, 2020). Until diagnostic techniques become more accessible and easier to perform, the effectiveness of strategies involving the identification of PRRSV in downstream pig operations remains questionable.…”
Section: Discussionmentioning
confidence: 99%
“…It was not considered that piglets from resilient sows will probably also develop better throughout the growing period. For this reason, the GM calculated here is likely underestimated with respect to the values obtained in cases where the impact of PRRSV is measured until the end of the growing phase [ 13 ].…”
Section: Discussionmentioning
confidence: 98%
“…This finding is in agreement with the experiment described by Abella et al (2019) [ 11 ], where the largest difference between resilient and susceptible sows was observed for mummified piglets during a PRRSV outbreak, and with the fact that increased mummified piglets is the most identifiable clinical outcome in an acute PRRSV outbreak in sows. Note, however, that the variable we used for measuring the losses of the gestation rate is not comparable with the abortion rate, commonly used in many studies addressing a PRRSV economic analysis [ 12 , 13 ]. The abortion rate only accounts for losses in the fetal stage (≥35–40 days of gestation), whereas the losses of gestation rate includes both embryonic and fetal losses.…”
Section: Discussionmentioning
confidence: 99%
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