Most of us have latent TB foci inside our lungs. We all are exposed to the organism early on in life and would have formed foci of infection in the lungs (primary TB). Our immune system would have contained the infection and prevented us from suffering the disease.
 
It is when our immune system becomes weak for some reason or is overwhelmed by the infection or any other cause, that we suffer the disease (reactivation).
 
The organisms can travel from the foci of infection in the lungs to other sites leading to secondary infection (TB of lymph nodes, spine etc).
 
2. By maintaining good health and immunity, you can prevent getting infected with tuberculosis. Nutritious food, adequate sleep, exercise and leading a life with minimal stress go a long way in helping our immunity fight any infection well including TB. Work on improving your immunity by including diet rich in antioxidants.
 
Have atleast 4-5 servings of fresh vegetables and fruits everyday. If you cannot have it due to certain practical constraints, make sure you take your daily dose of antioxidants/multivitamins after consulting your doctor. Anti-oxidants help fight free radicals produced in the body due to any kind of disease/stress and help in cell repair.
 
3. Fresh air and sunlight can help prevent TB. The microbes in TB thrive in cold, damp places. Whether you are at home or office, remember to open all your windows for a major portion of the day to let the sunlight and air in.
 
4. Tuberculosis primarily affects the lungs but can affect other organs too. Cough that lasts for more than 3 weeks, streaks of blood in the sputum (phlegm), low-grade fever, difficulty in breathing and unexplained weight loss are the commonest symptoms of TB of the lungs.
 
TB of other organ systems present with varied symptoms. For example: TB of the skin could present with a non healing ulcer, TB of the spine could present with backache, stiffness or even swelling in the back/groin, TB of the intestines could present with abdominal distension and absolute constipation.
 
Even a non-healing anal fistula could be due to TB. TB of the lymph nodes can present with swellings at multiple sites of the body. TB of the covering of the brain and spinal cord can cause TB Meningitis, especially in children.
 
 5. With the BCG vaccine, you cannot be resistant to TB throughout your life. It also doesn’t help in secondary forms of TB. That said, one still needs to get the BCG vaccine soon after birth.
 
6. TB is a fully treatable disease if the full course of medications are taken properly and regular follow- ups are done with the doctor. The main drugs used for TB are Isoniazid, Rifampicin, Pyrazinamide, Ethambutol and Streptomycin.
 
But always take these medicines under the doctor’s supervision because indiscriminate use can lead to jaundice, liver failure and kidney failure. The duration of the treatment varies from case to case and is at least for 6 months. Testing and treatment is available free of cost at all government hospitals, primary and community health centres.
 
 7. Follow full course of TB treatment prescribed. Not doing so can lead to the organisms developing resistance to the firstline drugs used in treatment causing MDR-TB (multi-drug resistant TB).
 
8. MDR-TB does not respond to standard TB drugs, is difficult and costly to treat. The MDR-TB prevalence is estimated to be 2.3 per cent among new cases and 12-17 per cent among re-treatment cases.
 
9. One of the major causes of infertility among women from the lower socio-economic conditions is genital TB. When latent bacilli in the lungs get reactivated, they often spread to different parts of the body including the genital tract.
 
 It can infect either the uterus and/or the fallopian tubes and usually does not show any symptoms. A very difficult disease to diagnose, only the culture from a tissue sample obtained from a genital tract can help.
 
10. Children including babies can suffer from TB, but often go undiagnosed. According to the WHO, around half a million babies and children get ill with TB every year and 70000 die due to it. Children under three years of age, especially those who are malnourished and with compromised immune systems are particularly prone to the disease. However, the symptoms often go unnoticed causing higher mortality rates.
 
 To prevent TB in children, get them immunized with the BCG vaccine soon after birth. People in your family, including house-help, who would come in close contact with the children need to be screened. Also, breastfeeding the baby for at least six months increases their immuni