Stop patients with TB from travelling on commercial flights
Ask airlines for contact details of passengers seated within two rows of an infectious patient on flights lasting eight hours or more
Force recalcitrant patients to go through treatment, and keep them at the CDC until they are cured
Reveal to the police or the immigration authorities why it needs their help to find patients. The need to keep the patient's illness confidential has 'sometimes led to operational difficulties' in requests to the police or the immigration authorities, said an MOH spokesman