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.
Samsung is the biggest smartphone manufacturer in the world, but things are a bit different in the U.S. According to research firm NPD, Apple still has the largest smartphone market share in the U.S. and its share widened over Samsung's in the final quarter of 2013. For the fourth quarter of 2013, Apple had 42% of the U.S. smartphone market share, up from 35% for the same period in 2012. Samsung's market share increased too (22% to 26%), but it's not growing as quickly as Apple is.