The sixteenth amendment to the Constitution of the United States was proposed to the legislatures of the several States by the Sixty-first Congress on the 12th of July, 1909, and was declared, in a proclamation of the Secretary of State, dated the 25th of February, 1913, to have been ratified by 36 of the 48 States.
3 How long should you wait in order to repeat a TB test ? Dr. Lokesh Guglani Dr. Guglani. Generally 6 weeks: The need to repeat a TB test generally depends on each individual's previous test results, presence of symptoms & risk factors for exposure to tb. An interval of at least 6 weeks is generally recommended.
The shot itself doesn't last 1 year and it doesn't prevent TB. It only tells you if you have TB at the time of the test. If you catch tuberculoses the next week, then you have TB. It does not prevent the disease, it is only a test for it. Source(s): Me.