Why OPV (Oral Poliovirus Vaccine) is given at birth or with 3/5 days?

Newborn babies are highly susceptible to infections due to their immature immune system.
Administering the OPV vaccine soon after birth maximizes its effectiveness in preventing polio.
The vaccine provides early protection against polio, which can help reduce the risk of complications and mortality associated with this disease.

Why is BCG Immunization is done at birth of a baby?

It is given to protect against tuberculosis (TB), which is a major public health concern in India.
protect against severe forms of TB, such as miliary TB and tuberculous meningitis, which are often life-threatening.

why is HepB1 vaccine is given so soon to newborns?

It is a single-dose vaccine that provides protection against hepatitis B, a viral infection that can cause liver disease.
The HepB1 vaccine is part of the standard immunization schedule in India and is administered as a standalone dose.
Given soon after birth helps prevent mother-to-child transmission of hepatitis B virus (HBV).

Remember that Newborn babies at high risk for getting infections due to their immature immune system. Giving these vaccines soon after birth helps in preventing disease. The complete Indian Immunization Schedule begins at birth and goes on till 10 years of age.

Blog topic : vaccine

Which Vaccines are covered under India's Universal Immunization Schedule?

What are the Compulsory First Vaccines for Newborns in India?