Tuberculosis

CAUSES OF TUBERCULOSIS

• MYCOBACTERIUM TUBERCULOSIS
  
• MYCOBACTERIUM BOVIS
  

SYMPTONS OF TUBERCULOSIS

• Persistent Cough
• Tiredness
• Loss Of Appetite =  Weight Loss

TRANSMISSION

• Pulmonary TB is Spread through the air by droplets, when infected individuals cough,sneeze,laugh or talk.
• M. tuberculosis is a resistant bacterium that can survive several weeks once the droplets have dried.
• TB can spread from Cows for Humans because M. bovis infects cattle, so their Milk may contain the bacterium.

PEOPLE IN GREATER RISK OF CONTRACTING TB

• People in close contact with infected individuals over long periods
• People who work or reside in long-term care facilities, where many people live close together
• People from countries where TB is common
• Poeple who have reduced immunity ,e.g very young or old people

Course Of Infection

• Bacteria grow & divide in upper region of the lungs where there is more oxygen supply.
• White Blood Cells accumulate at the site of infection to ingest the bacteria.
• Inflammation and enlargement of the lymph node that drain that area of the lung.( Primary Infection, usually occurs in kids)
• Bacteria may re-emerge after some years causing Second infection of TB(Post-Primary tuberculosis,usually occurs in adults)
• Infections rise in upper region of the lungs but cant be easily controlled, so bacteria may destroy tissue and lungs
• Sufferer Coughs up damaged lung tissue containing bacteria,with blood
  

Prevention and Control of TB

• Vaccination
• Better education about TB,particularly the need to complete usage of all drugs
• More and Better Housing
• Improved health Facilities and Treatments
• Better Nutrition to ensure that immune systems are not weakend by poor diet
• Treatment With Use of Drugs