* Obesity was defined as a body-mass index (the weight in kilograms divided by
the square of the height in meters) of 30 or more.
† Two patients had an abnormally low white-cell count (2.2×109 per liter and
3.1×109 per liter), and three had abnormally high counts (12.1×109, 17.9×109,
and 22×109 per liter).
‡ Four patients had abnormally low platelet counts (ranging from 110×109 to
122×109 per liter) and one had an abnormally high count (468×109 per liter)
§ Both of these patients remain in the intensive care unit and continue to receive
mechanical ventilation.