My daughter has asthma and we have a month old baby at home. How serious is it for my oldest daughter with asthma to be around someone with pneumonia. Is it super contagious?

Mgt. Your daughter has a pulmonary condition which can flare up with infections. I would suggest a flu vaccination, good hand washing and avoiding contact with anyone who is ill.
The baby and family members should also be vaccinated. A virtual consult may be helpful to you and your PCP.