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Rapid Test Cuts False Positives, Speeds Toxoplasma Detection
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New test rapidly diagnoses Toxoplasma infecti
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COVID-19 Q&A: Pfizer vaccine gets FDA approval
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July 12, 2021
Pfizer says its vaccine loses effectiveness over time and is seeking approval for booster shots. U.S. regulators aren t convinced they re needed yet.
SHOW TRANSCRIPT
Pfizer is trying to convince federal authorities to green-light a COVID booster shot. The COVID-19 vaccine maker began the week by briefing the FDA on the need for a third shot to protect against new variants.
Pfizer cites data out of Israel showing a decline in its vaccine effectiveness from more than 90% down to 64% as the Delta variant spreads. But for now, Israel is only offering a third dose to its most vulnerable citizens. Ramping up production would take months.