Autism, Vaccines Data from a large autism clinic shows 40% of sudden regression autism happened within 2 days after vaccination, & 76% within 2 weeks! July 31, 2026 Pam Vernon Leave a comment In 98% of the rapid regression cases, the common element that parents noted just prior to the onset of sudden regression was routine vaccination. Continue reading Data from a large autism clinic shows 40% of sudden regression autism happened within 2 days after vaccination, & 76% within 2 weeks! →Share this: Share on Facebook (Opens in new window) Facebook Share on X (Opens in new window) X Print (Opens in new window) Print Email a link to a friend (Opens in new window) Email Share on Reddit (Opens in new window) Reddit Share on Tumblr (Opens in new window) Tumblr Share on Pinterest (Opens in new window) Pinterest Share on Telegram (Opens in new window) Telegram Like Loading...