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Pulmonary tuberculosis(TB) (Transmission (Factors that increase chances of…
Pulmonary tuberculosis(TB)
Transmission
You can get TB by breathing in air droplets from a cough or sneeze of an infected person. The resulting lung infection is called primary TB.
Factors that increase chances of getting TB
Are around people who have TB
Live in crowded or unclean living conditions
Have poor nutrition
These factors can increase your chances of getting TB in a population
Increase in HIV infections
Increase in number of homeless people (poor environment and nutrition)
Presence of drug-resistant strains of TB
Symptoms
Symptoms of TB
Coughing that lasts three or more weeks
Coughing up blood
Chest pain, or pain with breathing or coughing
Unintentional weight loss
Fatigue
Fever
Night sweats
Chills
Loss of appetite
Treatment and recovery
Most people recover from primary TB infection without further evidence of the disease. The infection may stay inactive (dormant) for years. In some people, it becomes active again (reactivates).
Causes
TB is caused by the bacterium Mycobacterium tuberculosis (M tuberculosis). TB is contagious. This means the bacteria is easily spread from an infected person to someone else.