MCQOPTIONS
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| 1. |
Vaccines developed by which of the following produces an immune response in both young and old adults, raising hopes of a path out of the gloom and economic destruction wrought by the novel coronavirus? |
| A. | University of Oxford |
| B. | AstraZeneca |
| C. | GlaxoSmithKline |
| D. | Both 1 and 2 |
| E. | Both 1 and 3 |
| Answer» E. Both 1 and 3 | |