Because , Tuberculosis spread easily. So to prevent it, BCG vaccine is used.

BCG Vaccine: Controlling Tuberculosis

The BCG vaccine, which stands for Bacillus Calmette-Guérin, is primarily given to control tuberculosis (TB). TB is a contagious bacterial infection caused by Mycobacterium tuberculosis. It primarily affects the lungs but can also target other parts of the body, such as the kidneys, spine, and brain.

How Does the BCG Vaccine Work?

The BCG vaccine is derived from a weakened strain of Mycobacterium bovis, a bacterium closely related to Mycobacterium tuberculosis. When administered, the vaccine stimulates the immune system to produce a response against TB.

Efficacy of the BCG Vaccine

While the BCG vaccine is widely used in many countries, its effectiveness can vary. It has been found to be highly effective in preventing severe forms of TB, such as TB meningitis and disseminated TB, in children. However, its efficacy against pulmonary TB, the most common form of the disease, is limited.

BCG Vaccine and Measles, Typhoid, and Hydrophobia

Measles, typhoid, and hydrophobia are caused by different pathogens and require specific vaccines for prevention. The BCG vaccine is not designed to target these diseases. Let's briefly understand the vaccines used for each of these diseases:

1. Measles: The measles vaccine is typically given as part of the MMR vaccine, which also protects against mumps and rubella. It contains weakened measles virus components and helps the body develop immunity against measles.

2. Typhoid: The typhoid vaccine is administered to protect against Salmonella typhi, the bacteria responsible for causing typhoid fever. There are two types of typhoid vaccines available: the injectable vaccine and the oral vaccine.

3. Hydrophobia (Rabies): Hydrophobia, or rabies, is caused by the rabies virus. The rabies vaccine is given to individuals who are at risk of exposure to the virus, such as animal handlers, veterinarians, and individuals traveling to regions where rabies is prevalent.

In conclusion, the BCG vaccine is specifically given to control tuberculosis, not measles, typhoid, or hydrophobia. Each of these diseases requires its own specific vaccine for prevention. It is important to follow the recommended vaccination schedule and consult with healthcare professionals for accurate information regarding vaccine administration.