Virus and spyware definitions are files that act like an encyclopedia of known malicious software, including viruses, spyware, and other potentially unwanted software.
Highly accurate DNA parental testing became available in the 1980s with the development of RFLP. In the 1990s, PCR, developed in 1983, became the standard method for DNA parental testing. A simpler, faster, and more accurate method of testing than RFLP, it has an exclusion rate of 99.99% or higher.
Meeting this need of the aged was given top priority by President Lyndon B. Johnson's Administration, and a year and a half after he took office this objective was achieved when a new program, Medicare, was established by the 1965 amendments to the social security program.