Shingles is caused by the varicella-zoster virus-the same virus that causes chickenpox. After recovery from chickenpox, the virus remains in the body and lies dormant in the central nervous system. Over half of all shingles cases occur in people over the age of 60, with the burden of illness twice as high in people over 70, compared to people aged 60-69 years old. 2  4,18. 3  Shingles in caused by the same virus that causes chickenpox-varicella-zoster virus.
The Federal Aviation Administration (FAA) of the United States is a national authority with powers to regulate all aspects of civil aviation.
But the bureaucracy refers to all agencies, Departments in the cabinet, and agencies under those departments. The DOT (Dept Of Transportation) is a cabinet dept, Secretary of Transportation is it's head. FAA (Federal Aviation Administration), FMCSA (Federal Motor Carrier Safety Administration) are agencies under the DOT, But all, including the Transportation Secretary are part of the bureaucracy.