::::::::::::::I would suggest that it's not necessarily an "anti-vax" site as suggested, and it does cite sources within the body if was read.  Nonetheless, it raises interesting points (such as efficacy being related to age and to a particular strain)and does present the other side of the argument.  With respect to purported anti-vax statements on websites, this is against the standard of practice in most Canadian provinces and the CCO has fined members up to 25K for those shenanigans.  Nonetheless, we should not pick one example and make attributions, for I can go to MD websites and show them endorsing questionable methods such as homeopathy.  We need to be careful with giving fringe POVs too much weight here which seems to be an increasing concern.