In the simplest sense, expressing a gene means manufacturing its corresponding protein, and this multilayered process has two major steps. In the first step, the information in DNA is transferred to a messenger RNA (mRNA) molecule by way of a process called transcription.
Answer:
Might save some lives and also vaccine could reduce a chance of future outbreaks. Only if the patient is aware of the risk that might happen and agreed to use the drug.
Although, I'm not sure about the entirety of this question, when reviewing claims and evidence, check your sources to make sure they are reliable.