A spokeswoman for Centres for Disease Control and Prevention (CDC), Belsie González, explained that women tend to have a higher heart rate, lower lung capacity and an impaired immune system during pregnancy.
It had previously been believed that the likelihood of developing was less in comparison to previous strains of the virus.
This is mainly because a growing body of research asserts that this is because the variant is infecting the upper part of the body, as opposed to the lungs, where it is likely to cause infection.
Doctor Scott Robert, professor of infectious disease at the Yale School of Medicine in New Haven, recently told Medical News Today that less patients are being admitted to ICU with pneumonia.