Hello dear, Thank you for your contact to health care magic. I read and understand your concern. I am Dr Arun Tank answering your concern. If you have given them polio vaccine. There is no need to worry. Your baby is not going to have polio infection. Yes they are true that it takes a month to come the report of polio virus culture from stool. It is also fact that once infected this infection never going to be cured. Vaccine is the best way to prevent our baby and other community babies. It appears as common flu like symptoms. Which is like fever, cold,malaise and others. Thereafter the fever disappears and than the period of myelitis comes in the action. Which is characterised by limping of the gait and others. I don t think your baby is having this because your are having limping and fever all along. If the sequence is maintained than we can think that it s polio as sequence is not maintained than its not polio. As part of precaution please maintain good hand washing practice. This virus can spread via the feco oral route so handwashing is the effective barrier. I will be happy to answer your further concern on bit.ly/DrArun. Thank you, Dr Arun Tank Infectious diseases specialist, HCM.