- Real-world study shows Pfizer and Moderna COVID-19 vaccines give 'substantial' protection after first shot SBS News
- Pfizer, Moderna Vaccines Highly Effective Even After 1st Shot: US Study NDTV
- WATCH NOW: From the CDC - How Do I Safely Use a Multi-Dose Vaccine Vial? Part 1 Times and Democrat
- CDC: Pfizer and Moderna Covid vaccines found 90 percent effective in 'real-world' study NBC News
- Pfizer, Moderna Drugs Found 90% Effective in Real-World Study Barron's
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