Pneumonia (4) Human beings (4) infection (2) Coronavirus infections (2) Pregnant women (2) Pregnancy (2) Infection (2) Authors (2) Pregnancy (2) Interpretation (2) mortalité (1) surveillance (1) Monitoring (1) Mortality (1) Complications (1) World health (1) Organization (1) Mortality (1) Estimates (1) Algorithms (1) Use (1) Organization (1) Infections (1) Estimates (1)