Organisms Posing High Risks
(During the First 75 Years of The 20th Century)
Brucellosis (
Brucella
)
n
> 6000 cases through out the U.S. in 1947
Q fever (
Rickettsiae
)
Typhoid fever (
Salmonella
)
n
almost 6000 cases U.S.-wide in 1942
Viral hepatitis (all types)
Tuberculosis (
Mycobacteria
)