RotaTeq is a relatively new vaccine administered to infants in order to prevent rotavirus infections.  In general, I am strong proponent of vaccinations for children, but this one made me pause, for an MSPI specific reason.  That’s because one of the ingredients in the vaccine is fetal bovine serum (see the product monograph, p. 7).  Fetal bovine serum is frequently used in cell cultures, and since Rotateq is a live vaccine, trace amounts remain.
When it came time to vaccinate our older daughter. we chose to hold off on RotaTeq  for …