WASHINGTON, United States (AFP) — US biotech firm Moderna on Wednesday announced initial data from a small clinical trial that showed its booster shots improved people’s immune responses against key coronavirus variants of concern. “We are encouraged by these new data, which reinforce our confidence that our booster strategy should be protective against these newly detected variants,” said the company’s CEO Stephane Bancel. Forty participants were tested for their levels of neutralizing antibodies six to […]