'Game changer' single-dose vaccine from Johnson & Johnson is safe and 66% effective, company says - USA TODAY

1. 'Game changer' single-dose vaccine from Johnson & Johnson is safe and 66% effective, company says  USA TODAY
2. Johnson & Johnson COVID-19 vaccine just 66 percent effective  New York Post
3. Covid vaccine: Single-dose Johnson & Johnson jab is 66% effective  BBC News
4. Johnson & Johnson Says Single Dose Vaccine Is Effective In Preventing Covid Symptoms | MSNBC  MSNBC
5. Johnson & Johnson Releases Single-Dose Vaccine Results  Yahoo News
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