Secondary Transmission: The short and sweet about live virus vaccine shedding.
A child gets vaccinated and is from that moment on protected from the vaccine virus, correct? We all realize that vaccines are not 100% failproof, but is that the only concern?
If it only were that simple. The fact is that once a child is injected with a live virus vaccine (and let’s assume that this child is immune as a result of it) there are still other things to consider which most parents do not know about and most pediatricians fail to warn about – which is vaccine shedding!
Ex:'' Rubella Vaccine - Excretion of small amounts of live attenuated rubella virus from the nose and throat has occurred in the majority of susceptible individuals 7-28 days after vaccination. Transmission of the vaccine virus via breast milk has been documented. (3)
Chicken Pox Vaccine - Vaccine-strain chickenpox has been found replicating in the lung (4) and documented as transmtting via zoster (shingles sores) (5) as well as “classic” chickenpox (6) rash post-vaccination.
Oral Polio Vaccine (OPV) - In areas of the world where OPV is still used, children who have been vaccinated with it pass the virus into the water supply through the oral/feces route. Other children who then play in or drink that water pick up the vaccine viruses, which can pass from person to person and spark new outbreaks of polio. (7) * ''