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Japan Lifts H1N1 Voluntary Movement Restraint

by 5m Editor
28 October 2009, at 10:46am

JAPAN - On 21 October, the Japanese authorities had reported finding the H1N1 flu virus in pooled samples from pigs. The affected farm was placed under voluntary movement restraint.

The country's veterinary authorities sent Follow-up report No.1 to the World Organisation for Animal Health (OIE) yesterday, 27 October. No new outbreaks have been reported.

The source of the infection is inconclusive as no workers in the farm contracted any influenza-like illness during at least two months prior to this incident.

No clinical abnormalities were observed in all the pigs in the infected farm through surveillance conducted by the prefectural veterinary authority on 22 October 2009.

A total of 102 nasal swabs were collected from all 42 pigs kept in the same pen as the ten infected pigs that were tested earlier, 20 pigs in the same house and other 40 pigs in the same premises. The samples were submitted for PCR (polymerase chain reaction) test for influenza A subtype H1. All results were found to be negative.

The voluntary movement restraint imposed by the OIE was lifted on 23 October 2009.

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