Information received on 15/02/2021 from Dr Zbyněk Semerád, Director General, Central Veterinary Administration, State Veterinary Administration, Prague, Czech Republic
Summary
Report type
Follow-up report No. 3
Date of start of the event
20/01/2021
Date of confirmation of the event
22/01/2021
Report date
15/02/2021
Date submitted to OIE
15/02/2021
Reason for notification
Recurrence of a listed disease
Date of previous occurrence
25/03/2020
Manifestation of disease
Clinical disease
Causal agent
Highly pathogenic avian influenza virus
Serotype
H5N8
Nature of diagnosis
Laboratory (basic), Laboratory (advanced)
This event pertains to
a defined zone within the country
Related reports
Immediate notification (25/01/2021)
Follow-up report No. 1 (01/02/2021)
Follow-up report No. 2 (08/02/2021)
Follow-up report No. 3 (15/02/2021)
New outbreaks (2)

Outbreak 1
Katovice, Strakonice, Jihocesky
Date of start of the outbreak
08/02/2021
Outbreak status
Resolved (11/02/2021)
Epidemiological unit
Backyard
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
61
34
9
52
0
Affected population
Backyard holding with 34 hens, 4 turkeys, 16 ducks, 3 geese and 4 pigeons. 9 hens died, the other animals were killed and destroyed in the rendering plant
Outbreak 2
Bzí, Plzeň-jih, Plzensky
Date of start of the outbreak
08/02/2021
Outbreak status
Resolved (12/02/2021)
Epidemiological unit
Backyard
Affected animals
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
21
11
6
15
0
Affected population
Backyard holding with 21 hens.
Summary of outbreaks
Total outbreaks: 2
Total animals affected
Species
Susceptible
Cases
Deaths
Killed and disposed of
Slaughtered
Birds
82
45
15
67
0
Outbreak statistics
Species
Apparent morbidity rate
Apparent mortality rate
Apparent case fatality rate
Proportion susceptible animals lost*
Birds
54.88%
18.29%
33.33%
100.00%
*Removed from the susceptible population through death, destruction and/or slaughter
Epidemiology
Source of the outbreak(s) or origin of infection
Unknown or inconclusive

Control measures
Measures applied
Movement control inside the country
Surveillance within containment and/or protection zone
Official disposal of carcasses, by-products and waste
Stamping out
Control of wildlife reservoirs
Zoning
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
State Veterinary Institute Prague (National laboratory)
Birds
reverse transcription - polymerase chain reaction (RT-PCR)
10/02/2021
Positive
State Veterinary Institute Prague (National laboratory)
Birds
reverse transcription - polymerase chain reaction (RT-PCR)
12/02/2021
Positive
Future Reporting
The event is continuing. Weekly follow-up reports will be submitted.