Tuberculosis, as an infectious disease, is second only to HIV-Aids as the world's greatest killer.
Every year in Malaysia, 22 000 people are diagnosed with tuberculosis.
Doctors working in a tuberculosis ward of Kota Kinabalu worry that after seeing a decline in cases in the 1990s, that trend has now sharply reversed.
They say the public needs to pay attention to the disease and take measures to prevent it.
Al Jazeera's Stephanie Scawen reports from Kota Kinabalu, Malaysia.