CDC Approach To Breakthrough Infections Sparks Concerns
The CDC has decided to focus investigations of cases in which the COVID-19 vaccines fail on people who get hospitalized or die, but critics say that's short-sighted.
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<<INTRO>> The Centers for Disease Control and Prevention has stopped tracking every case that occurs when a COVID-19 vaccine fails to protect someone. Instead, the CDC is focusing on people who get very sick or die. But critics say that's not enough. NPR Health Correspondent Rob Stein has the story.
<<SCRIPT>> The COVID-19 vaccines are very effective. But they're not perfect. People can still sometimes
