Older children and adults usually build up immunity to the disease. Hand, foot, and mouth disease is rare in people older than 10. However, infection is still possible, especially among adults with compromised immune systems.
Presidents Theodore Roosevelt and Franklin Delano Roosevelt were fifth cousins, and a look back into the genealogical charts of the presidential office find numerous family connections. FDR, in fact, was related to 11 former presidents, the most of anyone on the list, according to History.com.
By Carrie Lofty. Franklin Delano Roosevelt had six children with his wife, Eleanor, although the first FDR Jr., born in 1909, also died that year. A second FDR Jr. would eventually be christened in 1914. Thus five of his children survived into adulthood, all of whom lived to advanced ages during a tumultuous century.