- FDA authorizes Pfizer COVID-19 booster shots for seniors and others at high riskCBS News
- FDA authorizes booster dose of Pfizer’s Covid-19 vaccine for people 65 and olderCNN
- What does waning COVID-19 vaccine immunity mean for the vaccinated?Fox News
- In-Depth: Can the COVID-19 vaccines cause ringing in the ears or tinnitus?ABC 10 News
- Coronavirus daily news updates, September 23: What to know today about COVID-19 in the Seattle area, Washington state and the worldThe Seattle Times
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