Porcine reproductive and respiratory syndrome,
Switzerland
Information received on 08/05/2020 from Mr Hans Wyss, Chief Veterinary Officer, Schwarzenburgstrasse 161, Swiss Federal Veterinary Office, LIEBEFELD BERNE, Switzerland
Summary
Report type Immediate notification
Date of start of the event 02/05/2020
Date of confirmation of the event 06/05/2020
Report date 08/05/2020
Date submitted to OIE 08/05/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 28/03/2014
Manifestation of disease Clinical disease
Causal agent Porcine reproductive and respiratory syndrome virus - Genotype 1 (EU)
Nature of diagnosis Laboratory (advanced)
This event pertains to the whole country
New outbreaks (2)
Outbreak 1 (PRRS_2020_BE_1) Bern, Bern, Bern-Mittelland, Bern
Date of start of the outbreak 02/05/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Other
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 11 1 0 1 0
Affected population Same animal as the animal from the outbreak in Le Côty (Val-de-Ruz).
Outbreak 2 (PRRS_2020_NE_1) Le Côty, Val-de-Ruz, Val-de-Ruz, Neuchatel
Date of start of the outbreak 02/05/2020
Outbreak status Continuing (or date resolved not provided)
Epidemiological unit Farm
Affected animals
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 3 1 0 0 0
Affected population The pig from an animal sanctuary in the Canton of Neuchâtel had been sent to the Clinic for Swine, Vetsuisse Faculty, University of Bern, on Saturday, 2nd May because of the following symptoms: three weeks of lameness, swollen carpal joints, increased body temperature, inappetence and vomiting.
Summary of outbreaks Total outbreaks: 2
Total animals affected
Species Susceptible Cases Deaths Killed and disposed of Slaughtered
Swine 14 2 0 1 0
Outbreak statistics
Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost*
Swine 14.29% 0.00% 0.00% 7.14%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments The pig from an animal shelter in the Canton of Neuchâtel had been sent to the Clinic for Swine, Vetsuisse Faculty, University of Bern, on Saturday, 2nd May because of the following symptoms: three weeks of lameness, swollen carpal joints, increased body temperature, inappetence and vomiting. At the clinic the pig developed fever, respiratory symptoms and petechiae on ears and trunk. On Monday, 4th May blood samples were taken, the animal was euthanised and sent to pathology. It had been kept in the isolation unit of the clinic during the whole period of hospitalization. Blood samples were directly sent to the national reference laboratory "Institute of Virology and Immunology (IVI)" and tests yielded negative results for African swine fever and classical swine fever. However, the samples tested positive for antibodies against porcine reproductive and respiratory syndrome virus (PRRSV) as well as for viral RNA of the genotype 1 (EU genotype). The animal shelter where the positive pig came from is keeping another about six months old pig, that tested positive for antibodies against PRRSV today. These two pigs arrived together at the shelter. The movement history of these two pigs needs to be clarified. Two Vietnamese pot-bellied pigs, already kept in the shelter before the arrival of the piglets, tested negative for antibodies and viral RNA. Movement of these animals has been prohibited. Within the coming days, holdings keeping pigs in a range of 5 km around the animal shelter will be tested as well.
Control measures
Measures applied
  • Movement control inside the country
  • Screening
  • Disinfection
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures
Diagnostic test results
Laboratory name and type Species Test Test date Result
Institute of Virology and Immunology (IVI) (National laboratory) Swine polymerase chain reaction (PCR) 06/05/2020 Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.
Map of outbreak locations