Quiet Killer (1992)

On her way home in a plane to New York the teenage Sarah gets very ill She realizes too late that its more than a cold and with her parents still on vacation she breaks down in the middle of the street and dies shortly after in a hospital by the plague as the terrified coroners find out While trying to keep this from the public to avoid a panic epidemic commissioner Dr Nora Hart has to investigate Sarahs identity and find everyone who had contact with her If she misses a single person the plague could kill half the city in a few days