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.
The Constitution and Bylaws of the Latin American Studies Association were published in the Latin American Research Review in 1966. LASA's first President after its 1966 incorporation was political scientist Kalman Silvert, who published extensively on Latin American political systems and conflict.