I understand from reading the interweb that roughly 20%-30% of the U.S. general populace is walking around with low levels of Vitamin C and the situation is similar with Vitamin D. Vitamin C actually kills viruses and strengthens your health in many other ways: http://www.webmd.com/...
Vitamin D is key in keeping your immune system operating:
http://articles.mercola.com/...
It's easy to pick up a decent inexpensive supplement and to take it regularly.
It's a near certainty in the coming months that some of us will ride airplanes, walk through airports, ride cabs/buses, visit movie theaters or visit emergency rooms where we could easily be exposed to low levels of virons, both deadly and not so deadly. Having good levels of Vitamin C and D greatly increases the likelihood of not getting sick -- not from ebola, the common cold or the flu.
Not having a Vitamin C deficiency also increases your IQ, so when you see a Faux News or CNN headline demanding that you scream, run and have a cow, you might actually have the presence of mind to change channel or turn off the tv.