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.
The niece of President Theodore Roosevelt (1858-1919), Eleanor was born into a wealthy New York family. She married Franklin Roosevelt, her fifth cousin once removed, in 1905. By the 1920s, Roosevelt, who raised five children, was involved in Democratic Party politics and numerous social reform organizations.