How many doses of the BCG vaccine does a newborn receive?

May 03, 2023 Source: Cainiu Health

Dr. Ma Yan

Introduction

The BCG vaccine for newborns generally requires only a single dose. The BCG vaccine is a live bacterial vaccine made from a suspension of attenuated bovine tuberculosis bacilli, which can stimulate the body to produce corresponding macrophages and sensitized lymphocytes. When the body is exposed to tuberculosis bacteria, it can rapidly trigger a specific immune response to protect against infection. Newborns can receive the BCG vaccine within 24 hours after birth.

Generally, newborns only need a single dose of the BCG vaccine. The details are as follows:

The BCG vaccine is a live bacterial vaccine made from a suspension of attenuated bovine tuberculosis bacilli. It can stimulate the body to produce corresponding macrophages and sensitized lymphocytes, enabling a rapid specific immune response when exposed to tuberculosis bacteria, thereby protecting the body against tuberculosis infections such as infiltrative pulmonary tuberculosis and tuberculous meningitis. Typically, newborns should receive the BCG vaccine within 24 hours after birth, and the protective effect usually lasts for 10 to 20 years.

After BCG vaccination, proper local care should be taken. If any adverse reactions occur, medical attention should be sought promptly.

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