Hello, Lot of causes Environmental pollution Low IMMUNITY Gathering in place which is clumsy SNEEZING , cough,in front of you can expose you to TB. Ideopathic Take TREATMENT without a miss,  you become healthy.ok.

latent tb is a common scenario in india.we acquire it in daily life through some tb contacts.so need not worry abt latent tb.

Latent TB occurs when a person has the TB bacteria within their body, but the bacteria are present in very small numbers. They are kept under control by the body’s immune system and do not cause any symptoms. People with latent TB do not feel sick and are not infectious. They cannot pass the bacteria on to other people. In addition they will usually have a normal chest x-ray and a negative sputum test. It could've been caused by exposure to a TB patient in public most likely.