preservatives such as thimerosal and residual antibiotics such as neomycin which is unlikely to cause allergy are used as vaccine ingredients to prevent contamination.
preservatives such as thimerosal and residual antibiotics such as neomycin which is unlikely to cause allergy are used as vaccine ingredients to prevent contamination.
what's in vaccines? ingredients and vaccine safety | cdc
more than shots, there's new help for allergy sufferers