If a mom is breast feeding her body has created the antibodies for the virus that she has. Additionally ensure that other family members do not carry the baby. Wash hands frequently, keep a sanitizer handy so that you can sanitize hands before lifting baby and finally remember not to sneeze or cough without covering your mouth. One thing which does help in ensuring that the spread of the virus is slower is using tissue and discarding used tissues rapidly. Cloth handkerchiefs tend to lie around and hence spread germs faster.