Sick husband

So my husband travels for work and Tuesday night while away started feeling sick then Wednesday when coming home felt extremely sick. So when he got home I had him stay up in our bedroom and kept our little girl downstairs with me. Well today he was worse so I took him to the doctor and he has influenza A ugh! I came home and disinfected everything and he is still in our bedroom. I’m freaking out about her getting it she is almost 4 months. Anything else I can do? And does anyone know if either of us caught it when we would start showing symptoms?