What is a common preventative measure against Tuberculosis?

Vaccination with BCG (Bacillus Calmette-Guérin) is a common preventative measure against Tuberculosis (TB). The BCG vaccine is particularly effective in preventing severe forms of TB, such as TB meningitis and disseminated TB in children. While it does not guarantee complete immunity, it significantly reduces the risk of infection and the severity of the disease if a vaccinated individual does become infected.

The other options do not serve as primary preventative measures for TB. Annual blood tests might help in monitoring exposure or infection but are not preventive in nature. Regular exercise and a high-protein diet contribute to overall health and may help the immune system function more effectively, but they do not specifically target the prevention of TB. Thus, the BCG vaccination stands out as the established method for preventing Tuberculosis.