
NEW YORK – The feverish race for a coronavirus vaccine got an infusion of energy Wednesday as Johnson & Johnson announced that it has begun the final stage of its clinical trials, the fourth company to do so in the United States.
Johnson & Johnson is a couple of months behind the leaders, but its advanced vaccine trial will be by far the largest, enrolling 60,000 participants. The company said it could know by the end of this year if its vaccine works.
This vaccine uses a technology that has a long safety record in vaccines for other diseases. Its vaccine could require just one shot instead of two – important considering that the entire population of the world needs vaccination.(The New York Times)





