John Coughlin and Officer Vincent Danz were all part of the NYPD EmergencyServiceUnit and were among the first to enter the buildings after they were hit by hijacked jetliners.
But members of the New York Police Department emergencyserviceunit who came in contact with the letter that was opened at a city mail facility were examined for "minor symptoms" of ricin exposure that they experienced on Saturday, according to Paul Browne, NYPD spokesman.
"The Emergency Medical Retrieval Service essentially brings the emergency department and the intensive care unit to the patient by helicopter or plane, " he added.