What is covid booster dose ? ,

A booster dose of vaccine is typically required because the protection provided by the initial vaccine(s) can wane over time. This can occur due to a variety of factors, including age, underlying health conditions, and the type of vaccine.

why is a booster dose of vaccine required

The purpose of a booster dose of vaccine is to enhance and extend the protective immunity provided by the initial vaccine(s). The timing of when a booster dose is needed can vary based on the vaccine and the individual, but booster doses are typically given 6 to 12 months after the initial vaccine series.

whow soon after booster dose immunity increase

Your NHS COVID pass for travel within 5 days will indicate if you have had a booster shot.

booster dose side effects?

Booster dose side effects are generally similar to the side effects of the initial vaccine, and can include pain or swelling at the injection site, fatigue, headache, muscle aches, and fever.

How long after booster vaccine is it effective?

A booster dose of the COVID-19 vaccine may need seven days to take effect.