"The results of the first tests carried out on samples of poultry provided by the Palestinian Authority reveal the presence of H5 bird flu,” an Israeli ministry spokeswoman said.
"Additional tests must still be carried out to determine whether it is the
H5N1 strain that was found in areas of Israel adjacent to the Gaza Strip a few days ago," she said.
Representatives from the Israeli and Palestinian agriculture ministries and veterinary services will meet at the Erez crossing between Israel and the Gaza Strip to discuss how to combat the bird flu.
"Israel will provide the Palestinian Authority with all necessary help, particularly equipment, in order to contain bird flu," the ministry spokeswoman said. It will be the second meeting at Erez between the two sides in 48 hours.
Palestinian agriculture ministry official Azzam Tbeileh said tests on 30 chickens found dead on Tuesday in the eastern Gaza Strip proved with "near certainty" that the poultry suffered from the deadly H5N1 strain of bird flu.
"Medical teams are prepared to quarantine the area and exterminate 35,000 poultry from the farm if the results of the first tests provide confirmation," Mr Tbeileh added. He said there was no indication of any human contamination.
The Palestinian health service was placed on a state of alert on Tuesday following the discovery in Israel of the H5N1 strain deadly to humans.
The Israeli authorities have since slaughtered hundreds of thousands of poultry in a bid to contain the outbreak.
In Egypt, which borders both Israel and Gaza to the south, four people have been infected with the H5N1 strain, including one who has already died.
But there have so far been no confirmed cases of bird flu in people in
Israel.
The Israeli authorities blame migratory birds which have been passing through the Holy Land in their hundreds of thousands as they make their way to Europe from Africa.