Q&A on vaccine protective effects, booster shot

By Wang Xiaoyu and Zhang Zhihao | chinadaily.com.cn | Updated: 2021-08-04 15:20
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A medical worker prepares a dose of COVID-19 vaccine at a high school in Shenzhen, South China's Guangdong Province, July 29, 2021. [Photo/Xinhua]

2. Is it necessary to get a COVID-19 booster shot?

There isn't enough evidence now to support delivering COVID-19 booster shots to individuals in the general public who have been vaccinated within a year.

However, for the elderly with weak immune systems, those suffering from chronic illnesses, workers at higher risk of contracting the virus, or people planning to travel to high-risk areas, research is underway to determine whether a booster dose is needed six to 12 months after initial immunization, and if so, then when the booster shot should be rolled out.

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