MCQOPTIONS
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| 1. |
Which of the following has/have started a clinical trial for a protein-based COVID-19 vaccine candidate? |
| A. | Sanofi |
| B. | GSK |
| C. | Gilead Sciences |
| D. | Both 1 and 2 |
| E. | Both 1 and 3 |
| Answer» E. Both 1 and 3 | |