The anti viral treatment should be started ASAP Maternal pyrexia should be treated with paracetamol Consider antenatal steroids for preterm labour specialized treatment and the decision is made by the Intensive Care specialists. As above, it may not always be necessary to terminate a pregnancy in the first or early second trimesters as there is no benefit in doing so for maternal ventilation. It is of vital importance to maintain the maternal physiology in the best possible state in order to allow the satisfactory progress of the pregnancy. There is now more capacity for ECMO treatment in the UK and more pregnant women are being referred to ECMO units for treatment. It is vitally important that the obstetric teams in the ECMO units are jointly involved in the mother's care and good communication is essential.