Summary
Report type: Immediate notification
Started: 28 May 2021
Confirmed: 9 Jun 2021
Reported: 15 Jun 2021
Reason for notification: 1st occurrence in a zone or a compartment
Causal agent: Highly pathogenic avian influenza virus
Serotype: H5N8
Nature of diagnosis: Clinical, laboratory
This event pertains to a defined zone within the country.

New outbreaks (1)
Summary of outbreaks
Total outbreaks (1)
Outbreak location 1: Hongjiannao National Nature Reserve, Erlintu
Town, Shenmu, Yulin, Shaanxi
Started: 28 May 2021
Epidemiological unit: Natural Park
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of /
Slaughtered or killed for commercial use / Vaccinated
Black-necked Grebe (_Podiceps nigricollis_):
Podicipedidae-Procellariiformes / - / 4249 / 4249 / 0 / 0 / 0

Epidemiology
Source of the outbreak(s) or origin of infection: Unknown or
inconclusive
Control measures applied [in wild]: zoning; surveillance outside
containment and/or the protection zone; disinfection; official
disposal of carcasses, by-products, and waste

Diagnostic test results
Laboratory name and type / Species / Test / Test date / Result
Harbin National Avian Influenza Reference Laboratory (OIE reference
laboratory) / Black necked Grebe / Virus isolation / 5 Jun 2021 /
Positive
Harbin National Avian Influenza Reference Laboratory (OIE reference
laboratory) / Black necked Grebe / Real-time reverse
transcription-polymerase chain reaction (rRT-PCR) / 29 May 2021 /
Positive