Minimum 2 doses should be given in life time..
Usually it is given at 15 months and 5 years.. (now latest trend is to give at 9 &15 months.).
So if you are confident that your baby has received 2 doses, you can relax.
However giving an extra dose is not going to do any harm.. (besides it is also one of the cheapest vaccine,). Given in govt. Hospitals , free of cost.
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http://mayaclinic.in/wpsite
Or
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Answered2017-03-23 06:43:08
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