United States of America - High pathogenicity avian influenza viruses (poultry) (Inf. with) - Follow up report 94
GENERAL INFORMATION
COUNTRY/TERRITORY OR ZONE
ZONE
ANIMAL TYPE
TERRESTRIAL
DISEASE CATEGORY
Listed disease
EVENT ID
4309
DISEASE
High pathogenicity avian influenza viruses (poultry) (Inf. with)
CAUSAL AGENT
Highly pathogenic avian influenza virus
GENOTYPE / SEROTYPE / SUBTYPE
H5N1
START DATE
2022/02/07
REASON FOR NOTIFICATION
Recurrence of an eradicated disease
DATE OF LAST OCCURRENCE
2020/05/28
CONFIRMATION DATE
2022/02/08
EVENT STATUS
On-going
END DATE -
SELF-DECLARATION
NO REPORT INFORMATION
REPORT NUMBER
Follow-up report 94
REPORT ID
FUR_164239
REPORT REFERENCE -
REPORT DATE
2023/12/08
REPORT STATUS
Validated
NO EVOLUTION REPORT
EPIDEMIOLOGY
SOURCE OF EVENT OR ORIGIN OF INFECTION
EPIDEMIOLOGICAL COMMENTS
The USDA Animal and Plant Health Inspection Service (APHIS), in conjunction with State Animal Health and Wildlife Officials, are conducting comprehensive epidemiological investigations and enhanced surveillance in response to the HPAI H5N1 related events. Affected population counts are based on estimated inventories from the date the outbreak was first reported to the World Organisation for Animal Health. HPAI events are now closed and control areas have been released in the following States: Alaska, Delaware, Florida, Idaho, Illinois, Indiana, Kansas, Kentucky, Maine, Michigan, Mississippi, Nebraska, New Hampshire, New Jersey, New York, Nevada, North Carolina, Oklahoma, Pennsylvania, Tennessee, Texas, and Virginia. These States have not had any recent HPAI events and have demonstrated: • Required surveillance in the State and control areas has been completed with negative results for HPAI. As a precaution, additional enhanced surveillance may continue in the State and area. • Depopulation of infected premises has been completed and appropriate disposal was implemented or completed. • Cleaning and disinfection of the infected premises has been completed (including, but not limited to, outside areas of premises, equipment, trucks, and other fomites). Note (26/10/2022): After reassessment by field investigators, outbreak OB_107904 has been designated as non-poultry premises and subsequently removed from this event.
QUANTITATIVE DATA SUMMARY
MEASURING UNIT
Animal
SpeciesSusceptibleCasesDeathsKilled and Disposed ofSlaughtered/ Killed for commercial useVaccinated Birds (DOMESTIC)NEW876467-84824157--TOTAL69577566-153936667865889--
DIAGNOSTIC DETAILS
CLINICAL SIGNS
YES
METHOD OF DIAGNOSTIC
Diagnostic test, Clinical
| | | | | | |
| Real-time reverse transcription polymerase chain reaction (rRT-PCR) | National Veterinary Services Laboratories (NVSL), Ames, Iowa | Birds | 557 | 2022/02/07 | 2023/12/05 | Positive |
| Gene sequencing | National Veterinary Services Laboratories (NVSL), Ames, Iowa | Birds | 557 | 2022/02/07 | 2023/12/05 | Positive |
https://wahis.woah.org/#/in-review/4309
