Contractingthe flu(influenza) during pregnancy poses a number of health risks to both you and your fetus.
During pregnancy, youre more likely to catch the flu due to changes in the bodys immune system.
Pregnancy also increases the risk of flu complications, such aspneumonia.
Photo composite by Michela Buttignol for Verywell Health; Getty Images
Flu complications vary depending on when it is contracted (i.e.
in the first, second, or third trimester).
I routinely recommend that my patients get the flu shot to avoid serious complications that can lead to hospitalization.
Common examples include extremely high fevers andbronchitis, which may turn into pneumonia.
Reasons for Increased Risks
Pregnancy leads to many temporary changes in the way the immune system functions.
The first-line treatment option for flu during pregnancy typically is an antiviral medication, such asTamiflu(oseltamivir).
Antiviral medications can shorten the severity and duration of your illness.
Its best to take antivirals within 48 hours of your symptoms appearing.
The typical course of Tamiflu is twice daily for five days.
Benefits
Research suggests that the seasonal flu vaccine has many potential benefits during pregnancy.
The flu shot can also help to protect the baby once born.
Side Effects
Side effects from the flu shot are typically mild, including during pregnancy.
Common side effects include:
Allergic reactions to the flu vaccine are extremely rare.
If you experience flu symptoms during pregnancy, reach out to your healthcare provider.
They may recommend that you take antiviral medications to reduce your chance of complications.
To prevent the flu, get a flu vaccine.
The American College of Obstetricians and Gynecologists.Influenza in pregnancy: Prevention and treatment.
Mount Sinai.Pregnancy and the flu.
Last updated: October 29, 2020.
MedlinePlus.Pregnancy and the flu.
LoMauro A, Aliverti A.Respiratory physiology of pregnancy: Physiology masterclass.Breathe (Sheff).
2015;11(4):297-301. doi:10.1183/20734735.008615
U.S. Centers for Disease Control and Prevention.Flu & pregnancy.
U.S. Centers for Disease Control and Prevention.Flu vaccine safety and pregnancy.
The American College of Obstetricians and Gynecologists.Physician FAQ: Influenza.
Vaccinate Your Family.org.2024-25 flu season.
