2009 Pandemic A/H1N1 influenza, United States of America

2009 Pandemic A/H1N1 influenza, United States of America
submited by kickingbird at Nov, 4, 2009 10:27 AM from OIE

Information received on 03/11/2009 from Dr John Clifford, Deputy Administrator, Animal and Plant Health Inspection Service, United States Department of Agriculture, Washington, United States of America

Summary

Report type	Immediate notification
Start date	22/10/2009
Date of first confirmation of the event	01/11/2009
Report date	03/11/2009
Date submitted to OIE	03/11/2009
Reason for notification	Emerging disease
Morbidity	1 scale05
Mortality	0 scale05
Zoonotic impact	Refer to OIE guidance/opinion
Causal agent	2009 Pandemic A/H1N1 influenza virus
Serotype	Other
This event pertains to	the whole country

New outbreaks

Summary of outbreaks

Total outbreaks: 1

Location(s)

INDIANA (State of Indiana)

Total animals affected

Species	Susceptible	Cases	Deaths	Destroyed	Slaughtered
Swine	3000	**	0	0	0

Outbreak statistics

Species	Apparent morbidity rate	Apparent mortality rate	Apparent case fatality rate	Proportion susceptible animals lost*
Swine	**	0.00%	**	0.00%

* Removed from the susceptible population through death, destruction and/or slaughter
** Not calculated because of missing information

Epidemiology

Source of the outbreak(s) or origin of infection

Unknown or inconclusive

Epidemiological comments

The USDA, Animal and Plant Inspection Service (APHIS), and the Indiana State Board of Animal Health (BOAH) are conducting a comprehensive epidemiological investigation of the event.

Epidemiological sequence of events as of 2 November 2009:
? 22 October 2009: samples from sows experiencing influenza-like illness at the facility were submitted to the University of Minnesota Laboratory for evaluation by the farm’s attending veterinarian(s).
? 29 October 2009: presumptive detection of 2009 H1N1 was reported to APHIS and laboratory samples submitted to USDA’s National Veterinary Services Laboratories (NVSL).
? 2 November 2009: NVSL confirmation of novel (pandemic) A/H1N1 2009 influenza virus.

- Information points to a recent exposure of the pigs with facility caretakers who were exhibiting influenza-like symptoms. The producer has implemented biosecurity measures including prohibiting sick people from having direct contact with the herd to prevent further potential human to animal transmission
- Recovered healthy pigs are sent to slaughter through normal marketing channels
- State public health officials have been notified of the situation

Control measures

Measures applied	No vaccination No treatment of affected animals
Measures to be applied	No other measures

Diagnostic test results

Laboratory name and type

National Veterinary Services Laboratories (NVSL) (National laboratory)

Tests and results

Species	Test	Test date	Result
Swine	polymerase chain reaction (PCR)	01/11/2009	Positive
Swine	virus isolation	02/11/2009	Positive
Swine	virus sequencing	02/11/2009	Positive

Future Reporting

The event is continuing. Weekly follow-up reports will be submitted.

See Also:

http://www.oie.int

Latest news in those days:

USCDC Confirms Human Cases of H5 Bird Flu Among Colorado Poultry Workers 1 days ago
GISAID: H5N1 Bird Flu Circulating in Dairy Cows in the United States 2 days ago
USCDC: Colorado Reports Three Presumptive Positive H5 Cases in Poultry Workers 4 days ago
USCDC: A(H5N1) Bird Flu Response Update, July 12, 2024 4 days ago
Avian flu: increased vigilance recommended 5 days ago

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