Vaccines that keep hosts alive but still allow transmission could thus allow very virulent strains to circulate in a population...Immunity elicited by direct vaccination or by maternal vaccination prolongs host survival but does not prevent infection, viral replication or transmission, thus extending the infectious periods of strains otherwise too lethal to persist. Our data show that anti-disease vaccines that do not prevent transmission can create conditions that promote the emergence of pathogen strains that cause more severe disease in unvaccinated hosts.
yes i know, i post these links basically everywhere and try to convince people to actually take a look into REAL SCIENCE other than trusting the experts. i hope i have already convinced quite some people with that
Your last link is very important.
yes i know, i post these links basically everywhere and try to convince people to actually take a look into REAL SCIENCE other than trusting the experts. i hope i have already convinced quite some people with that