No need to stop breast feeding.
Thanks for trusting us with your health concern.
Usually the immunity provided by a single course of vaccine
lasts for 2 to 3 years. If your cat has been vaccinated in last 3 years and there was no active bleeding in the area where the needle scratched you then there is no need to stop the breast feeding or getting any new vaccinations.
If there are any signs of infection in the area where the cat was bitten ,like pus,discolouration etc from the site,seek medical help
Please feel free to discuss further. I will be glad to answer the follow up queries that you have.
Wishing you good health.
Dr. Rakhi Tayal.
For future query, you can directly approach me through my profile URL http://bit.ly/Dr-Rakhi-Tayal