When only one of the blood cultures is positive out of a set of 2 or more. The validity of this statement is directly proportional to the number of negative blood cultures and depends on the organism identified.
The Foreign Intelligence Surveillance Act (FISA) was introduced on May 18, 1977, by Senator Ted Kennedy and was signed into law by President Carter in 1978.
Like Title III of the Omnibus Crime Control and Safe Streets Act of 1968 (the Wiretap Act), the FISA legislation was the result of congressional investigations into Federal surveillance activities conducted in the name of national security.