Mark Beers and Robert Berkow make a general comment in the 17th edition of 'THE MERCK MANUAL' , 1999, section 152- Immunisations for Adults, page 1097. The general comment bring attention to, 'by no means are vaccines totally safe or effective'. Vaccine usage has been encouraged with benefit to risk ratio in mind.
Authentic naturopathic knowledge is steadfastly aware that a healthy vegetarian diet is a safe and effective companion to natural immunity.
A core principal of naturopathic practice is FIRST DO NO HARM, any unsafe natural medicine is not part of traditional naturopathic practice.