- U.S. Judge upholds COVID-19 vaccine requirement for those with 'natural immunity' Reuters
- If You've Had COVID, How Long Does the Immunity Last? Here's What Medical Experts Say NBC10 Boston
- Hundreds of Hartford HealthCare employees risk termination as health system reaches COVID-19 vaccination deadline Hartford Courant
- Bozeman Health pediatrician discusses COVID vaccine for kids under 12 KBZK Bozeman MT News
- Fact check: No, natural immunity doesn't replace vaccination, experts say MSN Canada
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