Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 245-250 |
| Journal | Antiviral Research |
| Volume | 99 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2013 |
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Keywords
- virus
- netherlands
- pigs
- transmission
- vaccination
- strategies
- epidemics
- marker
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The potential of antiviral agents to control classical swine fever: A modelling study. / Backer, J.A.; Vrancken, R.; Neyts, J.; Goris, N.
In: Antiviral Research, Vol. 99, No. 3, 2013, p. 245-250.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - The potential of antiviral agents to control classical swine fever: A modelling study.
AU - Backer, J.A.
AU - Vrancken, R.
AU - Neyts, J.
AU - Goris, N.
PY - 2013
Y1 - 2013
N2 - Classical swine fever (CSF) represents a continuous threat to pig populations that are free of disease without vaccination. When CSF virus is introduced, the minimal control strategy imposed by the EU is often insufficient to mitigate the epidemic. Additional measures such as preemptive culling encounter ethical objections, whereas emergency vaccination leads to prolonged export restrictions. Antiviral agents, however, provide instantaneous protection without inducing an antibody response. The use of antiviral agents to contain CSF epidemics is studied with a model describing within- and between-herd virus transmission. Epidemics are simulated in a densely populated livestock area in The Netherlands, with farms of varying sizes and pig types (finishers, piglets and sows). Our results show that vaccination and/or antiviral treatment in a 2 km radius around an infected herd is more effective than preemptive culling in a 1 km radius. However, the instantaneous but temporary protection provided by antiviral treatment is slightly less effective than the delayed but long-lasting protection offered by vaccination. Therefore, the most effective control strategy is to vaccinate animals when allowed (finishers and piglets) and to treat with antiviral agents when vaccination is prohibited (sows). As independent control measure, antiviral treatment in a 1 km radius presents an elevated risk of epidemics running out of control. A 2 km control radius largely eliminates this risk.
AB - Classical swine fever (CSF) represents a continuous threat to pig populations that are free of disease without vaccination. When CSF virus is introduced, the minimal control strategy imposed by the EU is often insufficient to mitigate the epidemic. Additional measures such as preemptive culling encounter ethical objections, whereas emergency vaccination leads to prolonged export restrictions. Antiviral agents, however, provide instantaneous protection without inducing an antibody response. The use of antiviral agents to contain CSF epidemics is studied with a model describing within- and between-herd virus transmission. Epidemics are simulated in a densely populated livestock area in The Netherlands, with farms of varying sizes and pig types (finishers, piglets and sows). Our results show that vaccination and/or antiviral treatment in a 2 km radius around an infected herd is more effective than preemptive culling in a 1 km radius. However, the instantaneous but temporary protection provided by antiviral treatment is slightly less effective than the delayed but long-lasting protection offered by vaccination. Therefore, the most effective control strategy is to vaccinate animals when allowed (finishers and piglets) and to treat with antiviral agents when vaccination is prohibited (sows). As independent control measure, antiviral treatment in a 1 km radius presents an elevated risk of epidemics running out of control. A 2 km control radius largely eliminates this risk.
KW - virus
KW - netherlands
KW - pigs
KW - transmission
KW - vaccination
KW - strategies
KW - epidemics
KW - marker
U2 - 10.1016/j.antiviral.2013.06.013
DO - 10.1016/j.antiviral.2013.06.013
M3 - Article
VL - 99
SP - 245
EP - 250
JO - Antiviral Research
JF - Antiviral Research
SN - 0166-3542
IS - 3
ER -