"Global City Sampling Day gives us an opportunity to learn about more than 600 different microbes riding the subway with New Yorkers every day. We are grateful to Weill Cornell Medicine, Dr. Christopher Mason, and hundreds of volunteers who are helping us learn more about our city's health one swab at a time," said Councilman Ben Kallos (5th District), who will help initiate the New York City collection by swabbing a subway station on the Upper East Side with project principal investigator Dr. Mason.