NEW YORK, Jan. 24 (UPI) -- This article was originally published by Healthbeat . Sign up for its public health newsletters at healthbeat.org/newsletters . As more cases of bird flu emerge across the country, public health leaders in New York City are watching warily -- and making preparations in case the virus becomes a more immediate threat. Advertisement There have been no confirmed cases of bird flu in humans in New York state. But cases have emerged recently among wild birds and poultry,