Mixing Covid-19 vaccines increases the risk of unpleasant, short-term side-effects such as fatigue and fever, according to a UK trial in which people received different jabs for their first and second doses.
英國一項試驗顯示,混合接種新型冠狀病毒肺炎(COVID-19,即2019冠狀病毒病)疫苗會增加出現短期副作用(如疲勞和發燒)的風險。在該試驗中,人們在第一次和第二次接種的是不同款疫苗。
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