地球，人間煉獄：疫情、戰爭、窮困 (278期)：烏克蘭呼籲其南部戰場之國人速離家園:準備大反擊.....U.S. Slowly Rolls Out Covid Vaccines for Children Under 5。美國 F.D.A. 要國人戒菸，擬規定減少菸中尼古丁含量。 Stress Might Age the Immune System, New Study Finds

 

地球，人間煉獄：疫情、戰爭、窮困 (278期)：

烏克蘭呼籲其南部戰場之國人速離家園:準備大反擊.....

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Ukraine renewed its assault on a Black Sea island, suggesting it has received powerful weapons, analysts said. Follow updates.

U.S. Slowly Rolls Out Covid Vaccines for Children Under 5

It was a milestone in the pandemic, 18 months after adults first began receiving shots against the virus. The response from parents was notably muted.

President Biden called the effort to vaccinate very young children a “monumental step forward.” Catch up on Covid news.

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  Stress Might Age the Immune System, New Study Finds

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• What to Know About the Covid Vaccine for Little Kids

F.D.A. Aims to Cut Down on Smoking by Slashing Nicotine Levels in Cigarettes

The agency is planning to require tobacco companies to reduce the amount of nicotine in traditional cigarettes to make them less addictive.