EXCERPT FROM HISTORY OF THE TWENTY FIRST AIR FORCE/

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	- enteric disease prevention (gastrointestinal diseases the single largest
infectious threat to deployed forces - avoidance of food from local vendors);

	- waste disposal techniques;

	- insect control (danger of exposure to malaria, use of repellents);

	- reportage and control of any communicable disease outbreaks;

	- problems associated with heat acclimatization and jet-lag (7-10 days needed
to acclimatize to the heat, with jet-lag possibly lasting 3-5 days; authorization to use
certain sleep-enchancing drugs);

	- avoidance of all animals (snakebite antitoxins);

	- immunization requirements ('shot" recommended included
tetanus/diphtheria, oral polio vaccine, yellow fever, and certain cases,
meningococcal vaccine and gamma globulin);

	- the dangers of sexually-transmitted diseases, with HIV and hepatitis B viruses
notably present, "especially among prostitutes."  Requirements for HIV testing were
also outlined here; finally,

	- accident prevention, both in motor vehicles as well as in occupational/sports
pursuits..

	(U)  Incidents of Multiple Tire Failures, C-141B Aircraft:  Operation DESERT

SHIELD brought with it an enormous rise in the numbers of aircraft operating within

the 21 AF AOR, 106 a concomitant increase in the numbers of takeoffs and landings,

and a rash of C-141B tire failures.  As early as mid-October two C-141Bs in the system

were temporarily put out of commission when they suffered extensive landing gear

pod damage caused by blown tires.  This was followed by an even more serious

incident at Charleston on 6 November, when four tires on aircraft #64-0637 blew

out following two aborted takeoff runs; Safety later estimated that aircraft suffered

approximately $35,000 worth of damage (making it a Class "C" mishap).  Later, in

December, C-141B #66-0126 (assigned to the 438 MAW), after taking off from Al

Dhafra in the United Arab Emirates, had its #3 tire blow out in the wheel well.  The

force of the blowout sent debris through the fuselage and disabled the #1 hydraulic

system; subsequently, the #2 hydraulic system also failed when the main landing

gear (MLG) downlock override failed.  The aircraft commander declared an

emergency and returned to Al Dhafra where, after a safe landing, the #4  and #7

106.  At the busiest times of DESERT SHIELD, 21 AF was controlling well in excess of
400 aircraft daily in its AOR, with a high water mark of 442 reached on 25 Jan 91.
(From HO notes).