by Peter Westmore
With the cost of the covid19 pandemic measured in tens of millions of infections, a million deaths worldwide, and an unprecedented economic impact, there is understandable anticipation about the prospects of a safe, effective and ethically produced covid vax (vaccine) which will protect people from covid19 for at least some time.
There are three major problems facing possible covid19 vaccines: finding and testing suitable candidates; overcoming ethical issues with particu…