Understanding CMV
Cytomegalovirus (CMV) is a common virus that most healthy adults carry without symptoms. However, when a pregnant person contracts CMV for the first time — or the virus reactivates during pregnancy — it can pass to the unborn baby.
Congenital CMV (cCMV) is the most common viral infection passed from mother to baby during pregnancy. Around 85–90% of affected babies show no symptoms at birth. For the remaining 10%, the effects can include hearing loss, vision impairment, cerebral palsy, and intellectual disability.
Reducing Transmission Risk
Simple hygiene measures can significantly reduce the risk of catching CMV during pregnancy:
- Wash hands thoroughly after changing nappies
- Avoid sharing food, drinks, or utensils with young children
- Avoid kissing young children on the mouth or near the face
- Wipe down surfaces that come into contact with mucus, saliva or urine including toys
Talking to Your Healthcare Provider
If you are pregnant or planning a pregnancy, speak with your GP, obstetrician or midwife about CMV. Ask about screening options and what steps you can take to protect your baby.
External Resources
- CMV and Pregnancy — NSW Health
- Prevention of Congenital CMV — RANZCOG
- What is CMV — Cerebral Palsy Alliance
- CMV During Pregnancy — Pregnancy Birth & Baby
- CMV — Healthdirect Australia
- CDC: Cytomegalovirus (CMV)
- The Kids Research Institute Australia
- Children's Cancer Centre Hospital — cCMV
- Miracle Babies Foundation