The ultimate immunity aims to shorten the duration of illness by elevating the action of the immune system. Vitamin C helps to eliminate the pathogenic bacteria building up in your body during illness. Vitamin C also helps to protect the body from airborne illnesses while traveling. While vitamin C is combating infection and free-radicals, Zinc helps to repress dormant microbes in your body. IV doses of vitamin C and Zinc have been clinically proven to shorten recovery time and prevent future infections.