London: Johnson & Johnson said it would start human trials of its potential COVID-19 vaccine in the second half of July, two months earlier than planned, as drugmakers race to develop a shot for the deadly respiratory disease. There are currently no approved treatments or vaccines for COVID-19, the illness caused by the new coronavirus that has killed more than 400,000 people globally. J&J’s study will test the vaccine against a placebo and assess the shot’s safety and immune response in 1,045 healthy people aged 18 to 55 years, as well as those 65 years and older. The trial will take place in the United States and Belgium.
