Why TB day celebrated?World TB Day observed on 24 March each year. It is an opportunity to raise awareness about the burden of tuberculosis (TB) worldwide and the status of TB prevention and care efforts. It commemorates the day in 1882 when Dr. Robert Koch astounded the scientific community by announcing that he had discovered the cause of tuberculosis, the TB bacillus. WHO Statistics Tuberculosis (TB) is one of the top 10 causes of death worldwide. In 2015, 10.4 million people fell ill with TB and 1.8 million died from the disease (including 0.4 million among people with HIV). Over 95% of TB deaths occur in low- and middle-income countries. Six countries account for 60% of the total, with India leading the count, followed by Indonesia, China, Nigeria, Pakistan and South Africa. TB incidence has fallen by an average of 1.5% per year since 2000. This needs to accelerate to a 4–5% annual decline to reach the 2020 milestones of the “End TB Strategy”.
Tuberculosis InfectionTuberculosis (TB) is a disease caused by bacteria that are spread through the air from person to person. If not treated properly, TB disease can be fatal. People infected with TB bacteria who are not sick may still need treatment to prevent TB disease from developing in the future. Learn to recognize the symptoms of TB disease and find out if you are at risk. Latent TB Infection and TB disease The TB bacteria are put into the air when a person with TB disease coughs, sneezes, speaks or sings. People nearby may breathe in these bacteria and become infected. There are two types of TB conditions: latent TB infection and TB disease.
- When the TB bacteria can live in the body without making you sick, that stage is called Latent Tuberculosis Infection. People with a strong immune system are able to fight the TB bacteria and stop them from growing. Latent TB infected people do not feel sick or have any symptoms, and cannot spread TB bacteria to others. It is also called an inactive TB.
- If TB bacteria become active in the body and multiply, the person will go from having latent TB infection to being sick with TB disease. People with TB disease usually have symptoms and may spread TB bacteria to others. It is also called active TB.