TB Bacillus 1

Vaccination programmes are made available to employees at risk from harmful bacteria and viruses in the workplace.

TB is a bacterial disease which mainly affects the lungs but can affect other parts of the body. In general, only lung TB is infectious. This should be distinguished from latent TB where the TB bacillus lies dormant in the body, and may reactivate in approximately 5-10% of cases. It is not infectious and causes no symptoms or ill health.

Transmission takes place when a person with active infection of the lungs coughs or sneeze expelling TB germs into the air. Close contact for cumulatively 8 hours or more with the infected person is usually needed for transmission to take place. TB infection is generally successfully treated with modern drugs. It can be difficult to diagnose and treatment usually lasts for several months.