Table 2 Characteristics of studies evaluating the economic impact of interventions to prevent/control disease caused by endemic respiratory pathogens in pigs
Study | Country | Infection scenario | Infectious agent(s)1 | Intervention | No. of farms supplying primary production data2 | Stage of production | Unit of analysis | Study design | Data sources3 | Reference |
|---|---|---|---|---|---|---|---|---|---|---|
Dee (1994) | US | Endemic | Mhp | Medication and early weaning | 2 | Growing | Pig | Historical control study | DA | [77] |
Dee et al. (1996) | US | Endemic | PRRSV | Nursery depopulation | 5 | Growing | Farm, sow, and pig | Historical control study | DA | [78] |
Dee et al. (1997) | US | Endemic | PRRSV | Nursery depopulation | 34 | Growing | Sow | Historical control study | DA | [79] |
Dee and Molitor (1998) | US | Endemic | PRRSV | Elimination (test and removal) | 1 | Breeding | Sow | Case report | DA; A | [32] |
Maes et al. (1998) | Belgium | Endemic | Mhp | Vaccination | 5 | Growing | Pig | Controlled trial | DA | [42] |
Pallares et al. (2000) | Spain | Endemic | Mhp | Vaccination | 8 | Growing | Pig | Controlled trial | DA | [43] |
Kyriakis et al. (2001) | Greece | Endemic | Mhp | Vaccination | 1 | Growing | Pig | Controlled trial | DA | [80] |
Miller et al. (2001) | US | Endemic | Mhp | Vaccination | NA | Growing | Farm | Deterministic model | LS; A | [81] |
Pallares et al. (2001) | Spain | Endemic | Mhp | Vaccination | 16 | Growing | Kg of carcass and kg gained in fattening | Controlled trial | DA | [82] |
Maes et al. (2003) | Belgium | Endemic | Mhp | Vaccination | 14 | Growing | Pig | Controlled trial | DA | [83] |
Stipkovits et al. (2003) | Hungary | Endemic | Mhp | Vaccination and medication | 1 | Growing | Kg of finishing pig marketed | Controlled trial | DA | [84] |
Holyoake and Callinan (2006) | Australia | Endemic | Mhp | Vaccination | 3 | Growing | Pig | Controlled trial | DA; LS; A | [85] |
Schaefer and Morrison (2006) | US | Endemic | PRRSV | Elimination (herd closure) | 15 | Breeding | Herd (farms combined) | Historical control study | DA; A | [86] |
Rapp-Gabrielson et al. (2007) | US | Endemic | Co-infection | Vaccination | 1 | Growing | Carcass value | Controlled trial | DA; LG | [87] |
Young et al. (2011) 4 | Canada | Endemic | PCV-2 | Vaccination | 1 | Growing | Pig | Controlled trial | DA; A | [24] |
Nieuwenhuis et al. (2012)* | Netherlands | Epidemic | PRRSV | Monitoring, vaccination, and eradication | 9 | Breeding | Sow | Historical control study | DA | [20] |
Alarcon, Rushton, Nathues, et al. (2013) | UK | Endemic | PCV-2 | Vaccination, diets, stocking density, biosecurity, and depopulation-repopulation | 50 | Growing | Farm | Stochastic model | LS; LG; E | [33] |
Alonso et al. (2013) | US | Endemic | PRRSV | Air filtration | 21 | Breeding | Farm, sow, and pig | Cohort / deterministic model | DA; LS | [30] |
Zhang et al. (2014) | Vietnam | Endemic/Epidemic | PRRSV | Vaccination | NA | Growing | Country | Deterministic model | DA; LS; A; E | [57] |
Linhares et al. (2015) | US | Endemic | PRRSV | Vaccination | NA | Breeding | Farm | Deterministic & Stochastic model | DA; LS; A | [44] |
Ramirez et al. (2015) | US | Endemic | Co-infection | Medication | 4 | Growing | Pig and Kg of body weight | Controlled trial | DA | [40] |
Stygar et al. (2016) | Finland | Epidemic | App | Cleaning, vaccination, and medication | NA | Growing | Pig space unit | Dynamic programming model | LS; A | [88] |
Crenshaw et al. (2016)4 | Canada | Endemic | PRRSV | Feed regimen | 1 | Growing | Pig | Controlled trial | DA; A | [25] |
Kaalberg et al. (2017) | Netherlands | Endemic | Co-infection | Vaccination | 1 | Growing | Pig | Controlled trial | DA; LG | [89] |
Kim et al. (2017) | Korea | Endemic | PRRSV | Vaccination | 3 | Breeding and growing | Farm | Historical control study | DA; LG | [41] |
Zhang et al. (2017)4 | Cambodia | Epidemic | PRRSV | Vaccination and biosecurity | NA | Breeding and growing | Farm | Deterministic model | DA; LG; LS | [23] |
Duivon et al. (2018) | France | Endemic | Co-infection | Vaccination | 1 | Growing | Sow and pig | Controlled trial | DA; LG | [90] |
Nathues et al. (2018) | Germany | Endemic | PRRSV | Depopulation-repopulation, close and roll-over, vaccination, and biosecurity | NA | Breeding and growing | Farm | Stochastic model | LS; A; E | [36] |
Silva et al. (2019) | US | Endemic | Mhp | Elimination | 70 | Breeding and growing | Farm, sow, and pig | Cross-sectional/ deterministic model | DA; LS | [31] |
Calderón DÃaz, Fitzgerald, et al. (2020)* | Ireland | Endemic | Co-infection | Vaccination | 56 | Growing | Farm | Stochastic model | DA | [21] |
Thomann et al. (2020) | Germany | Endemic | PRRSV | Vaccination | NA | Breeding | Country, farm, and sow | Stochastic model | LS; LG; A | [91] |
Abella et al. (2021) | Spain | Endemic/Epidemic | PRRSV | Animal selection | 1 | Breeding | Sow | Discrete-based event model | DA; LG | [92] |
Quezada-Fraide et al. (2021) | Mexico | Endemic | PRRSV | Vaccination | 2 | Growing | Pig and day of fattening | Cohort study | DA; A | [93] |
Jerlström et al. (2022) | Sweden | Endemic | NS | No litter mixing after weaning and separate gilt management | 1 | Growing | Farm | Deterministic & stochastic model | LG; E, C, | [94] |
Moura et al. (2022) | US | Endemic | PRRSV | Vaccination | 9 | Growing | Experimental group | Controlled trial / deterministic model | DA; LG | [29] |