Obviously, sewage = very bad, but specific to the polio virus, does this imply a rethink to the idea that it was a positive to have the attenuated live virus spread indirectly to unvaccinated individuals?
Obviously, sewage = very bad, but specific to the polio virus, does this imply a rethink to the idea that it was a positive to have the attenuated live virus spread indirectly to unvaccinated individuals?
Obviously, sewage = very bad, but specific to the polio virus, does this imply a rethink to the idea that it was a positive to have the attenuated live virus spread indirectly to unvaccinated individuals?