Covid-19: The NHS trust the Army is helping through the second wave By Thomas Mackintosh image captionMilitary personnel are working alongside NHS staff at the Royal London Hospital Barts Health NHS Trust runs five hospitals in London. It has the highest coronavirus death rate in the capital. A key difference between the first and second wave is the mortality rate. Much has been learned about the virus, and patients who might have died in the first wave are being kept alive. This means Barts is even more overstretched than it was in the spring. "Nurses are physically and mentally exhausted," says