Multiple Australian outlets report warnings about a common virus that can cause serious harm to unborn babies, particularly when pregnant women have young children at home who may bring infections into the household. The articles note that many pregnant people may not be aware of the virus and its potential risks during pregnancy. While the specific virus is not detailed in the provided excerpts, all three sources consistently frame the issue as a preventable health concern. The reports also highlight that practical measures can reduce the chance of infection and, consequently, lower the risk to the fetus. Each article points to three simple steps aimed at infection control, emphasizing actions that can be taken by pregnant women and their households. The common theme across the coverage is that the risk is higher for pregnant women living with or caring for children, and that basic precautions can make a measurable difference. The articles encourage attention to the virus during pregnancy and reinforce that prevention efforts are central to protecting unborn babies.