SEVEN babies were stillborn in one night at a major Zimbabwean hospital this week because their mothers did not get adequate medical care due to a nurses' strike, doctors said, as a dispute over working conditions cripples hospitals. Nurses went on strike countrywide last month demanding U.S. dollar salaries, which the government says it cannot afford. That has left government hospitals with skeleton staff and doctors and senior nurses stretched at a time when the country is grappling with rising COVID-19 cases. Out of eight pregnant women who underwent caesarean sections on Monday night at Sally Mugabe Hospital, the biggest…