The primary deciding factor is whether you can easily afford to get the immunisation done. We need clarity on what you mean by Flu vaccination. If it refers to influenza (virus) vaccination, this is NOT required. If it refers to Haemophilus inflluenzae (bacterial) vaccination, this would be
useful as it protects against an important bacteria that can cause pneumonia and meningitis (brain fever) in infants. Chicken pox and hepatitis A vaccination also protect against important morbidities, if you can easily afford it.