- Pregnant women with the flu need hospitalization 4 times more often than non-pregnant women;
- The most severe flu occurs in the 3rd trimester of pregnancy;
- More than 8% of hospitalized pregnant women (mainly in the third trimester of the disease) need intensive care;
- The mortality rate from influenza among patients in the third trimester of pregnancy is maximum and reaches 16.9%, with a mortality rate of 6% among all hospitalized adults;
- Premature birth in pregnant women with the flu is observed 3 times more frequent;
- Perinatal mortality is 5 times higher.