A silent threat, congenital cytomegalovirus (CMV), has been lurking in the shadows, affecting thousands of Australian babies each year. This herpes-like virus, often unknown to pregnant women and those trying to conceive, is the leading cause of congenital infection and disability in newborns. The statistics are alarming: almost 2000 babies annually are born with CMV, and approximately 400 of them will face physical or intellectual challenges, including deafness, blindness, and cerebral palsy.
The virus, transmitted through bodily fluids, can wreak havoc on the placenta and fetal organs, leading to stillbirth, neonatal death, and severe conditions like cytomegalic inclusion disease. Despite its prevalence, awareness remains shockingly low, with less than 20% of pregnant women informed about CMV and its risks.
The Need for Action
The federal government's Australian Pregnancy Care Guidelines have finally recognized the urgency, recommending that all maternity teams educate women about CMV and provide guidance on hygiene practices to reduce infection risk. Additionally, high-risk women, such as those with young children or working in childcare, should be offered early CMV detection blood tests.
Professor Nadia Badawi, a neonatologist and researcher, emphasizes the importance of these measures. "Practising safe hygiene can reduce the risk of CMV infection by 70% in high-risk women," she says.
Strategies for Prevention
- Wash with Care: Regular and thorough handwashing with warm, soapy water or alcohol-based sanitizers, especially after diaper changes, nose wiping, and handling children's toys and pacifiers, is crucial.
- Kiss with Care: Avoid kissing children on or near the lips. Opt for a kiss on the forehead instead.
- Don't Share: Refrain from sharing food, drinks, or cutlery with young children. Avoid putting a child's pacifier or toothbrush in your mouth.
A Personal Story
Jennifer Kennedy's experience highlights the devastating impact of CMV. After her son brought home a daycare bug, she discovered she was pregnant, only to learn that her unborn son, Harry, had severe abnormalities due to CMV. The decision to terminate the pregnancy, a choice she had never imagined making as a Christian, was heart-wrenching.
"If I had known about CMV, I would have gotten a blood test as soon as I realized I was pregnant," Kennedy says. High-dose valacyclovir, an antiviral medication, can be prescribed to prevent the virus from reaching the fetus.
The Impact of CMV
CMV is often harmless, causing mild flu-like symptoms, but for pregnant women, especially those with young children, the risk is heightened. An estimated 2% of pregnant women contract CMV for the first time during pregnancy, and about one-third of these cases result in fetal infection. While most affected fetuses develop normally, approximately 15% will develop CMV-related disabilities by age five.
Kate Daly, president of CMV Australia, stresses the importance of awareness: "Every pregnant woman has the right to know about CMV."
Conclusion
The long-awaited update to the guidelines is a step forward, but the challenge now lies in ensuring that the message reaches all pregnant women and healthcare professionals. CMV, a silent and deadly virus, demands our attention and proactive measures to protect the health and well-being of our future generations.
