Conclusion
COVID-19 infection in pregnancy may cause severe outcomes for mothers and infants. Early detection and initiation of appropriate management are therefore crucial. An important clinical manifestation of critically ill pregnant women infected with COVID-19 is the progressive decline in blood oxygen and hypoxemia that is difficult to correct even with supportive oxygen therapy. The degree of lymphocytopenia, markedly increased serum procalcitonin, IL-6 and amyloid A are prominent features of critically ill patients.