A person is suffering from chest pain, breathlessness, loss of body weight, persistent cough and produces blood stained sputum. (a) Name the disease and its causative agent. (b) Mention two means of its transmission. (c) Name the vaccine used to prevent this disease. (d) Who discovered the causative agent of disease?
i) Disease is Tuberculosis (TB) and its causative agent is Mycobacterium tuberculosis. (ii) Inhaling infected droplets released by coughing, sneezing or talking to infected person. (iii) Vaccine used to prevent this disease is BCG (Bacillus Calmette Guerin).
