“Many men with malaria were hospitalized more than once . . . many suffered from a milder form of malaria or other illness and did not turn in at the hospital at all. It became a rule of thumb in front-line units that unless one had a temperature of more than 103 degrees there would be no light duty or excuse from a patrol mission. The tropics weakened nearly everyone. Food had been in short supply during the early weeks of the [Guadalcanal] campaign, much of the fare had been substandard, and most of the long-time veterans of the fighting suffered some form of malnutrition.” – Lt. Col. Frank O. Hough, USMCR, Maj. Verle E. Ludwig, USMC, and Henry I. Shaw, Jr., “Final Period, 9 December 1942 to 9 February 1943,” Pearl Harbor to Guadalcanal, History of U.S. Marine Corps Operations in World War II, Vol. I