City firefighters are not only on the front lines of fire and disaster: They're also battling a seasonal disease, as well.
Members of the force did their part to prevent the spread of the flu Thursday by getting vaccinated.
It's part of the department's annual anti-terrorism drill.
"This is a protection for our members, so that when they go home, if there's an event, their family will be safe. And this is just part of our preparedness since September 11th, working with Homeland Security to ensure that we can provide first responder service if we are hit with a biological or chemical event," said Fire Commissioner Salvatore Cassano.
The FDNY said there is a stockpile of vaccine available in case of an emergency.