RACE TO DEVELOP A CORONAVIRUS VACCINE
Corona viruses have caused two other recent epidemics severe acute respiratory syndrome (Sars) and Middle East respiratory syndrome (Mers). An essential precursor to regulatory approval is Clinical trials which usually take place in three phases. The first is involving a few dozen healthy volunteers, tests the vaccine. The second is involving several hundred people who are usually in a part of the world affected by the disease and the third does the same in several thousand people. COVID-19 is new and scientists understand to some extent about how it behaves and spreads. The cost of creating a vaccine to protect people against the new corona virus will run into billions of dollars and could take many months. Here are some of the reasons why. • COVID-19 vaccine time to get into the market is likely to be at least 18 months. • Potential treatments require ...