The disease, Tuberculosis. The bacteria. (Mtb) Mycobacterium tuberculosis. Siimply leave comments for improvements. Thanks

1. NAME : BRENDA CHONG (00011203)
LEE ENG SHENG (00011155)
INSTRUCTOR : MS. PUTRI SHAREEN

2. Tuberculosis is caused by the infectious agent
known as Mycobacterium tuberculosis (Mtb).
Koch's bacillus.

3. Gram-resistant (waxy cell walls)
Non motile
Pleomorphic rods
Pathogenic *to humans

4. 1. Small, slow-growing bacterium that can live
only in human body.
2. Aerobic bacterium, needs oxygen to survive.
3. During active TB disease, Mtb complexes are
always found in the upper air sacs of the
lungs.

5. Acid-fast bacilli
The lipid-rich cell
wall s are
impermeable to
various basic dyes
(except for phenol
compounds)

6. 1. Heat fix cells on glass microscope slide.
2. Flood the slide with carbol fuchsin stain.
3. Heat the slide gently until it steams (5 min).
4. Pour off the carbol fuchsin.
5. Wash slide thoroughly with water.
6. Decolourize with acid-alcohol (5 min).
7. Wash slide thoroughly with water.
8. Flood slide with methylene blue counterstain for 1 min.
9. Wash with water.
10. Blot excess water and dry in hand over bunsen flame.

8. It is spread through the air
from person to person
When TB patients cough, sneeze, spit, laugh or
talk.

9. The inhaled TB bacteria reach the lungs when
a person breathes in Mtb-contaminated air.
Latent TB infection. The bacteria can remain
dormant (asleep) for years and not cause any
TB disease.

10. The first effective
treatment for TB
was developed in
the 1940s –
streptomycin.

11. Infants often are vaccinated with bacille
Calmette-Guerin BCG injections.
(Home)
Stay home.
Ventilate the room.
Cover your mouth.
Wear a mask.

12. 1. Mycobacterium Tuberculosis [Online]. Retrieved from :
http://www.microbiologybytes.com/video/Mtuberculosis.ht
ml [Accessed 29 JULY 2014]
2. http://www.mayoclinic.org/diseases-
conditions/tuberculosis/basics/prevention/con-20021761
[Accessed 22 JULY 2014]
3. http://www.niaid.nih.gov/topics/tuberculosis/understanding/
pages/cause.aspx [Accessed 22 JULY 2014]