how much time can you let pass between 2month and 4 month...

Question: 

How much time can you let pass between 2 month and 4 month immunizations. Is 10 weeks ok, or does it need to be at 8 weeks. Will I have to redo the first shots?

Answer: 

You will not have to redo the 2 month immunizations if longer than the recommended time passes between the two and four month immunizations. However, for greatest protection it is recommended that children are immunized as close to the recommended schedule as possible.