Hendrik Streeck said people developing herd immunity against the virus sounded "terrible" but this is required in terms of slowing down the infection cases
As China has been looking for countries to test its vaccines, Serbia and Pakistan are among those new countries which are willing to conduct to Phase 3 trials
Gertrude Elion developed many life-saving antibiotics but it was her antiviral drug acyclovir which paved the way for future medicines to treat viral diseases