People who are simultaneously infected with Covid-19 and influenza face double the risk of death, according to a new study, highlighting the challenge being posed to health systems as flu re-emerges.
一項新的研究表明，同時感染新冠病毒和流感的人面臨雙倍的死亡風險，這突顯出隨著流感再次出現，衛生系統面臨的挑戰。
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