BRUSSELS, Mar 18 (AFP): A new "strongly suspected" case of the potentially lethal H5N1 strain of bird flu has been found in a duck on a Swedish game farm, officials said Friday.
If confirmed it would be only the second case of H5N1 on a commercial farm in the European Union, said the European Commission.
The feared case was found in a mallard on a farm near the town of Oskarshamn, on the eastern coast of Sweden, where two wild ducks were confirmed earlier this week to have had H5N1, it said.
Initially the European Union's executive issued a statement saying that H5N1 had been confirmed, but subsequently issued a correction saying only that it was "strongly suspected."
The first case of the lethal strain on a farm -- as opposed to in wild birds -- was an outbreak on a turkey farm in France in late February, and came despite concerted efforts to keep H5N1 out of the human food chain.
All birds on the Swedish farm -- around 500 mallards and 150 pheasants -- were ordered to be immediately destroyed, and checks on other holdings in the area were stepped up.
In the latest case the virus was only found in one mallard on the farm. "In order to understand the situation better, further testing will be carried out on the birds on the farm following slaughter," the commission said.
The H5N1 strain first arrived in the EU last month, and has now been confirmed in 11 EU countries: Austria, France, Germany, Greece, Hungary, Italy, Poland. Slovakia, Slovenia, Sweden and Denmark.
The H5N1 strain, in its most aggressive form, has killed nearly 100 people worldwide, mainly in Asia.
AFP adds from Israel: Israel confirmed the deadly H5N1 bird flu strain had been found in thousands of fowl, as four people were confined to isolation units Friday and the authorities halted all poultry exports.
Battling the country's first outbreak of bird flu, the authorities ordered poultry in a quarantined area in the southern Negev desert to be exterminated.