BCG is the vaccine for tuberculosis. What is the full form of BCG?
Bacille Calmette-Guerin
Understanding the BCG Vaccine and its Full Form
The question asks about the full form of the BCG vaccine, which is used to protect against tuberculosis (TB).
Let's look at the options provided:
- Bacille Calmette-Guerin
- Bacille Calciviridae-Guerin
- Bacillum Caliciviridae-Guerin
- Bacterial Calmette-Guerin
The BCG vaccine is named after the scientists who developed it, Albert Calmette and Camille Guérin. The term "Bacille" refers to a rod-shaped bacterium, which describes the form of the bacteria used in the vaccine. The BCG vaccine uses a weakened form of the bacterium Mycobacterium bovis.
Therefore, the full form of BCG is Bacille Calmette-Guerin.
Let's briefly consider the other options to understand why they are incorrect:
- Options 2 and 3 include "Calciviridae" or "Caliciviridae", which are related to a family of viruses (Caliciviridae). BCG is a bacterial vaccine, not a viral one.
- Option 4 uses "Bacterial" instead of "Bacille". While BCG is a bacterial vaccine, the specific and correct term in its name is "Bacille", referring to the shape of the bacteria.
The correct expansion of BCG vaccine stands for Bacille Calmette-Guerin.
Revision Table: Key Facts about BCG Vaccine
| Term | Description |
|---|---|
| BCG | Bacille Calmette-Guerin |
| Type of Vaccine | Live-attenuated bacterial vaccine |
| Disease Prevented | Tuberculosis (TB), especially severe forms in children |
| Developers | Albert Calmette and Camille Guérin |
Additional Information on Tuberculosis and BCG Vaccine
Tuberculosis is a potentially serious infectious disease that primarily affects the lungs. It is caused by a type of bacteria called Mycobacterium tuberculosis.
The BCG vaccine is widely used in many countries with a high incidence of tuberculosis. It is typically given to infants shortly after birth.
The vaccine helps the body develop immunity to the TB bacteria. While it is effective in preventing severe forms of TB in children, its effectiveness against pulmonary TB in adults varies.
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