Context: A Federal Trade Commission report issued in 1958 attempted to quantify the effect of antibiotic development on American public health. The report found that over the period 1946-1955, there was a 42% drop in the incidence of diseases for which antibiotics were effective and only a 20% drop in those for which antibiotics were not effective. The report concluded that "it appears that the use of antibiotics, early diagnosis, and other factors have limited the epidemic spread and thus the number of these diseases which have occurred". The study further examined mortality rates for eight common diseases for which antibiotics offered effective therapy (syphilis, tuberculosis, dysentery, scarlet fever, whooping cough, meningococcal infections, and pneumonia), and found a 56% decline over the same period. Notable among these was a 75% decline in deaths due to tuberculosis.

Question: What disease had the biggest decline of deaths?
Answer: tuberculosis

Question: What period was the report issued in 1958 cover?
Answer: 1946-1955

Question: Who issued the report in 1958?
Answer: Federal Trade Commission

Question: What were eight diseases examined for?
Answer: mortality rates

Question: What was responsible for the decline in spreading diseases?
Answer: use of antibiotics, early diagnosis, and other factors

Question: How much did the mortality rate of common bacterial infections decline between 1946-1955?
Answer: 56%

Question: How much did the mortality rate of tuberculosis drop between 1946-1955?
Answer: 75%

Question: Who issued a report describing the effects of antibiotic developments?
Answer: Federal Trade Commission

Question: In what year was the FTC's report issued?
Answer: 1958

Question: What disease had the biggest decline of diagnosis?
Answer: Unanswerable

Question: What period did the report issued in 1964 cover? 
Answer: Unanswerable

Question: Who issued the report in 1964?
Answer: Unanswerable

Question: What were nine diseases examined for?
Answer: Unanswerable

Question: What was responsible for the decline in spreading commissions?
Answer: Unanswerable