The first dose of the Pfizer/BioNTech vaccination is 85 percent effective against coronavirus infection between two and four weeks after inoculation, according to a study published in the Lancet medical journal.
Masked first-graders excitedly chatted to each other at a Johannesburg school on Monday, trying to make friends, some even going to shake hands -- but the coronavirus pandemic has put an end to that, at least for now.
Anxiety, depression, self-harm and even suicide: a growing number of children in the United States are struggling with their mental health during the coronavirus pandemic, doctors, teachers, parents and the government are all warning.
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