Symptoms of transverse myelitis often appear within a few hours and worsen over the period of a few days. Some patients may experience a slower progression of the condition over the course of a few weeks, known as subacute transverse myelitis, but this is unusual.
Armonk is a hamlet and census-designated place (CDP) in the town of North Castle, New York located in Westchester County.
As of the 2010 census, Armonk's CDP population is 4,330 and it has a total area of 6.1 square miles (15.7 km 2), of which 6.0 square miles (15.5 km 2) is land and 0.077 square miles (0.2 km 2), or 1.54 percent, is water. Armonk is well-known as being the headquarters of IBM.