BCG Full Form

Principles and Procedures of BCG Meaning with Advantages

BCG full form stands for Bacile Calmette-Guerin and is widely used for tuberculosis patients. It is applied in countries where tuberculosis is prevalent. It is important to remember that this vaccine is used for treatment and not for the cure from the disease.

Its working explains the full meaning of bcg. The vial is injected into the human body, and it builds a wall of protection against the bacteria, causing tuberculosis. It is, however, not used to treat bladder cancer.

How Does this Vaccine Work?

Pathologists and doctors widely use the term bcg abbreviation. The use of this vaccination is recommended as a must for babies. However, the vial is now given to people who are at a higher risk of contracting this dreaded disease.

This medicine contains a live bacterium in a weakened form. You should understand the full meaning of bcg to understand the working of this type of bacteria known as Mycobacterium Bovis. This live bacteria acts as a shield for your body and prevents TB to a great extent.

Whenever your body is exposed to foreign objects like viruses, the immune system manufactures antibodies against it, these good bacteria destroy the viruses by building a protective corridor around the body. These antibodies remain inside the body and protect against further infections. So, the bcg full form is explained as an activated immunity system protection against these viruses.

BCG vaccine contains inactive forms of bacteria that cause tuberculosis. These bacteria produce a defence system in the body and don't make you ill. The injected vials develop a strong and natural immune system that slowly kills the germs.

How is Vaccine Given to Patients?

The doctor will perform a skin test to determine the presence of antibodies before administering the dose. It is normal for doctors to use the bcg abbreviation while giving the vaccine to the patient. This test uses tuberculin PPD and is known as the Mantoux test.

Children below six years don't need to have the Mantoux test unless his country of residence has greater exposure to TB. The bcg vaccine is administered as a single dose into the skin on the upper arm. Revaccination is not known and it is not possible to know the time of immunity.

When Shouldn’t You Use This Vaccine?

  • This vaccine shouldn’t be used for:

  • People with a previous history of tuberculosis

  • Skin reaction due to the Mantoux test

  • Newborn babies in a house where a TB case exists

  • People with HIV infection and infants born to HIV positive mothers

  • People with blood cancer and lymphoma


The bcg meaning is to understand first, and healthcare workers should be appropriately coached for administering the dose. Moreover, you shouldn't administer the vial into an area where another vaccination has been provided. This vaccine has been a useful tool in spreading the check of this dreadful virus.

FAQ (Frequently Asked Questions)

1. Can BCG Vaccination be Given at any Age?

Most doctors recommend that the best time to give this vaccine to kids is a few days after their birth or at any time before they are six months old. Also, this vaccine can be given to kids at any time until they are 5 years old.

2. Does the BCG Vaccine Leave a Scar always?

Yes, the BCG vaccine mostly leaves a scar. It is generally given on the upper arm of a child and doctors advise to keep the vaccine area uncovered till it heals. It heals within a time span of some weeks.

3. How Long Does Vaccine Protection Last?

The protection of the BCG vaccine lasts for 20 years at the least. This vaccine is prepared from the weakened strains of TB bacteria. As the bacteria in the vaccine is weak, it boosts the immune system to protect the body against Tuberculosis.