Archive for the ‘Tuberculosis’ Category
Mycobacteria, Cause of Tuberculosis
Mycobacterium tuberculosis
The family of mycobacteria (Mycobacteriaceae) comprises a set of rods whose main characteristic is to present, when the stain, acid-resistance due to the presence of lipids in their cell walls. The initials mean AFB acid-fast bacilli.
These widespread germs in nature, some of which are saprophytic soil, water, etc. while others are capable of producing lesions chronifying granulomas in humans (TB, leprosy) or other animals.
At present, TB is caused by Mycobacterium tuberculosis (MT) which is an aerobic bacillus, still, that does not form spores, its optimum growth temperature is 37 degrees, but is resistant to cold and desiccation. Mycobacterium bovis is the agent that caused other cases of TB (bovine TB) by ingestion of contaminated milk. Read the rest of this entry »
Tuberculosis
DEFINITION
Tuberculosis is an infectious disease caused by tuberculosis Micobacteryum. Normally primarily affects the lungs but can spread into other organs.
CAUSES
Anyone can be affected by this infection, the disease spreads through the air by tiny droplets of secretions from coughing or sneezing of people infected with tuberculosis Micobacteryum. To spread of tuberculosis must have frequent contact, family, or living with infected people. It is very rare to get a casual for a casual contact in the street.
Once the bacteria gets into the lung to form a granuloma, which is the primary infection of tuberculosis, this process produces no symptoms and 95% of cases recover without further problems alone. The TB bacteria and goes to a dormant phase locked in a granuloma. If for any reason (other infections, AIDS, cancer, stress, etc …) the body’s defenses weaken the bacteria become active and produce the disease. Read the rest of this entry »