From my understanding you take the oral drops and this is then passed into breast milk and your child gets it. If your child is going to be taking formula then it will have vitamin K in it.

The reason people do this is because the injection is something like 10,000 times the dose actually needed, this can be an overload to some children's kidneys resulting in jaundice for one.

There is also a lot of controversy as to whether it is needed as what it is going to help is hemoragic fever (I know the spelling is wrong) which is really rare, and a lot of people say that the shot isn't worth the very low risk of the disease.

I am pregnant now and will be doing the drops, my second child has been very ill, so I am just going to do things a little different.