Remember that millions of people between 1950 and 1970 were injected with polio vaccines containing simian virus 40 (SV-40) transferred from contaminated monkey kidney cells used to culture the vaccine.
(contaminated monkey kidney cells; used; to culture the vaccine) (polio vaccines containing simian virus 40 (SV-40); transferred; from contaminated monkey kidney cells)
contaminated monkey kidney cells polio vaccines containing simian virus 40 (SV-40)
used transferred
to culture the vaccine
from contaminated monkey kidney cells