Police continued their search for a man they said slugged a straphanger on the 7 train.
The high-tech scarf called a Scough is made with "germ-filtering" fabric, its creators say.
Rail problems disrupted many New Yorkers' Thursday commute.
A man attacked another straphanger aboard a 7 train in Queens, the NYPD said.
A man suffered a cardiac arrest after he was a hit by an M train, officials said.
A person died at the 6 train's Zerega Avenue stop, the FDNY said.
The victim chased the accused thief underground from station to station.
A person was taken to Bellevue Hospital after being struck by a B train Thursday, officials said.
The suspect and the victim had been riding the G train together on Jan. 26.
Signal problems disrupted the 1, 2 and 3 subway lines in most of Manhattan, the MTA said.
The assault happened Christmas Eve at the Queens Plaza station, police said.
The renovation of the Dyckman Street station replaced the platforms and added a new elevator and ramp.
A person was rushed to Bellevue Hospital after tripping and hitting a train, the FDNY said.
An empty suitcase prompted 1, 2 and 3 trains to temporarily bypass Times Square Monday, police said.
The disruption came just hours after major Metro North problems left commuters stuck.
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