how to prevent tuberculosis

To prevent the transmission of tuberculosis (TB)in healthcare settings, the CDC has issued guidelines that require most employees to be screened for tuberculosis upon being hired and subsequently on a regular, often annual, basis.
Some residential institutions, such as nursing homes, also screen all new residents for tuberculosis.
Screening for active TB is best accomplished by a chest x-ray.
Some other steps toward preventing the spread of TB include:




Improving the ventilation in indoor spaces so there are fewer bacteria in the air
Using germicidal ultraviolet lamps to kill airborne bacteria in buildings where people at high risk of tuberculosis live or congregate
Treating latent infection before it becomes active
Using directly observed therapy (DOT) in people with diagnosed tuberculosis (latent or active) to raise the likelihood of the disease being cured
Tuberculosis Vaccine




A vaccine for tuberculosis called bacille Calmette-Guerin, or BCG, is used in parts of the world with high rates of the infection to prevent serious complications such as meningitis.
BCG is rarely used in the U.S, however, because some studies have shown that BCG is not effective in preventing TB cases, and because treatment of latent TB infection with isoniazid is a more effective strategy to prevent tuberculosis.