Pfizer to start testing COVID-19 vaccine in kids
Last week, Pfizer Inc. received permission to test its vaccine in U.S. kids as young as 12, one of only a handful of attempts around the world to start exploring if any experimental shots being pushed for adults also can protect children.
Johnson & Johnson pauses COVID-19 vaccine trial over 'unexplained illness'
J&J says adverse events - illnesses, accidents, etc. - even those that are serious, are an expected part of any clinical study, especially large studies, and said pauses are not uncommon in clinical trials.