The BCG (Bacillus Calmette-Guérin) vaccination is primarily used to protect against tuberculosis (TB), especially in children. This guide provides a quick overview of this important vaccine.
**What is BCG?** It's a live attenuated vaccine derived from a weakened strain of *Mycobacterium bovis*. It stimulates the immune system to fight off TB infection.
**Who needs it?** Typically, BCG is recommended for newborns and infants in areas where TB is prevalent. Healthcare workers at high risk may also need it. Your doctor will determine if it's necessary for you or your child.
**How is it given?** BCG is administered intradermally, meaning it's injected into the top layer of the skin, usually on the upper arm.
**What to expect after vaccination?** A small bleb (raised area) will appear immediately after the injection. Over several weeks, this will develop into a small sore that may ulcerate and eventually heal, leaving a small scar. This scar indicates the vaccine has taken effect.
**Are there side effects?** Common side effects include pain, redness, and swelling at the injection site. Serious side effects are rare.
**Important:** The BCG vaccine doesn't offer complete protection against TB, but it significantly reduces the risk of severe forms of the disease, especially in children. Consult your healthcare provider for personalized advice regarding BCG vaccination.
