(AP) - New York health officials say more testingis being done on the first three probable cases of swine flu foundoutside of New York City.

Health Commissioner Richard Daines says the cases in Orange, Suffolk, and Cortland counties are believed caused by the same virusthat has proved deadly in Mexico and is spreading illnessworldwide. But that won't be confirmed until federal Centers forDisease Control and Prevention tests are complete.

In the meantime, as many as 70 workers and residents at along-term care facility in Orange County will be treated with theanti-viral agent Tamiflu because one of the suspected casesinvolves a health care worker there.

The CDC says 51 cases have been confirmed in New York, most at aCatholic high school in New York City.