Some facts about shingles include that: 1  Shingles is rare in children under ten years of age. 2  Younger children who do develop shingles tend to have milder symptoms than adults with shingles. 3  People have a 10 to 15 percent chance of developing shingles at some point in their life if they once had chicken pox.
There are approximately 310 million people in the United States. Of these people, approximately 250 million are over the age of 14. According to Comscore, about 235 million of these Americans use mobile devices. It seems likely that almost all of these folks will eventually have smartphones.
This number is expected to rise to over 700 million by 2018. India, which is currently third on the list of countries ranked by total number of smartphones users, will overtake the United States in 2016 to become the world's second largest smartphone market, with over 200 million smartphone users.