question regarding oral polio vaccines; why does the modified live oral vaccine (I'm assuming that's what it is) revert to wildtype in the feces? Why is it then infectious?
question regarding oral polio vaccines; why does the modified live oral vaccine (I'm assuming that's what it is) revert to wildtype in the feces? Why is it then infectious?
question regarding oral polio vaccines; why does the modified live oral vaccine (I'm assuming that's what it is) revert to wildtype in the feces? Why is it then infectious?