Highly pathogenic avian influenza,
United States of America
Information received on 05/06/2020 from Dr Mark Davidson, Associate Administrator, USDA-APHIS, United States Department of Agriculture, Washington, United States of America
Summary
Report type Follow-up report No. 7
Date of start of the event 06/04/2020
Date of confirmation of the event 08/04/2020
Report date 05/06/2020
Date submitted to OIE 05/06/2020
Date event resolved 28/05/2020
Reason for notification Recurrence of a listed disease
Date of previous occurrence 11/08/2017
Manifestation of disease Clinical disease
Causal agent Highly pathogenic avian influenza virus
Serotype H7N3
Nature of diagnosis Laboratory (advanced)
This event pertains to a defined zone within the country
Related reports Immediate notification (09/04/2020)
Follow-up report No. 1 (16/04/2020)
Follow-up report No. 2 (24/04/2020)
Follow-up report No. 3 (30/04/2020)
Follow-up report No. 4 (07/05/2020)
Follow-up report No. 5 (15/05/2020)
Follow-up report No. 6 (21/05/2020)
Follow-up report No. 7 (05/06/2020)
Follow-up report No. 8 (05/08/2020)
Outbreaks There are no new outbreaks in this report
Epidemiology
Source of the outbreak(s) or origin of infection
  • Unknown or inconclusive
Epidemiological comments 5 Jun 2020 update: All environmental sampling and testing for avian influenza virus post C & D completion were negative for avian influenza virus at the affected South Carolina premises. The premises was released from quarantine on 28 May 2020. Routine passive and active surveillance for the National Poultry Improvement Plan (NPIP) avian influenza programs is ongoing state-wide in South Carolina. The USDA Animal Plant Health Inspection Service (APHIS) and South Carolina State Veterinarianís Office, part of Clemson University Livestock Poultry Health (CULPH), continue conducting a comprehensive epidemiological investigation.
Control measures
Measures applied
  • Movement control inside the country
  • Surveillance outside containment and/or protection zone
  • Surveillance within containment and/or protection zone
  • Quarantine
  • Official disposal of carcasses, by-products and waste
  • Stamping out
  • Zoning
  • Disinfection
  • Vaccination prohibited
  • No treatment of affected animals
Measures to be applied
  • No other measures
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.