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.
FISA - an act passed by Congress in 1978 to establish procedures for requesting judicial authorization for foreign intelligence surveillance and to create the Foreign Intelligence Surveillance Court; intended to increase United States counterintelligence; separate from ordinary law enforcement surveillance