Personally idk...I don't believe in flu shots I haven't gotten one for almost a decade and I haven't had anything more than a 24 hr bug here and there so I don't get them for my future child I would probably wait at least til a year old. I feel like as long as you take precautions like keeping the baby away from people with cold symptoms and having everyone wash their hands before handling them you should be okay. I don't believe in meds for for the sake of taking them. But that's just me to each their own