Covid household

Hi mummies, please advise if you have similar experience! My husband just tested covid+ and we have a newborn of 4days here at home. He is currently isolating elsewhere not at home. However, these few days he has been home helping out with confinement lady and me. He hardly holds the baby. Our current precaution for the adults is to wear mask at all times and swab everyday. I am super worried about the baby! We will monitor his temperature at intervals and see if his breathing is ok. May I know what to do if either me or my nanny test positive? Where to send baby to swab and check? Please advise thank you very much!!!!! #worryingmom #pleasehelp #advicepls