1. Anti-TB chemotherapy

3 to 4 drug regimen

Either once per day or 3 times per week

2. Directly Observed Treatment, Short Course (DOTs)

The TB patient takes every dose of the medication under the direct observation of health personnel or a designated person.

Six months treatment

Occasional 9 months to 1 year

Infection rate drops to minimal after 2 weeks treatment

Chemotherapy is very effective, success rate over 95%

3. Non-compliance in chemotherapy

Drug resistance

Disease progression

Infect other people

Death

Infectious rate of tubercle bacillus

After effective chemotherapy up to 2 days, sputum bacilli count drops by 90%, with rapid decrease of infection.