“Vaccine skeptics, gather in D.C. to protest & to lobby” NO words #DefendScience cc @ASlavitt @bruce_y_lee https://t.co/WIsrnyiXvQ

— Beth Linas, PhD (@bethlinas) March 31, 2017

One advocate held a sign saying “Polio was a false flag.”

“We’re being heard.”

When it comes to public health, all opinions are not equal. https://t.co/jDstng2mk4

— Andy Slavitt (@ASlavitt) March 31, 2017