According to doctors of Kolkata, change in daily routine is helpful to improve immunity. Mostly our habits are the prime reason behind weak immunity, said by a Immunologist in Kolkata. Stem cell Transplantation is one of the remedial procedure performed at immunology hospitals in Kolkata. Reviews of some hospitals like Bhagirathi Neotia Woman and Child Care Centre are very convincing. Care takers in medical centre of Kolkata are very professional and practised.