The answer would be : <span>orally.
Hope this helps !
Photon</span>
Answer:
The clinical trial show efficacy and safety.
Explanation:
There are tests that are done to make sure that the drug, vaccine, etc. works. The effectivness is called efficacy. In order for a drug to be apporved it has to be safe and effective. If it fails this test, it is not approvable.
Danger would become present when you are to put a great amount of strain on your body.
Only 1/3% of people get what they need