Gaining depth on gain of function Yesterday I posted “The fallacious Fauci strikes again.” My comments elicited a message from Michael S. Rogers, Assistant Professor of Surgery at Harvard Medical School and Research Associate in the Vascular Biology Program at Boston Children’s Hospital. I thought some readers might find it of interest. With his permission I am posting his message below the break. * * * * * The question of whether the 2017 PLoS Pathogens paper contains gain of function experiments has recently been in the news. Since I have significant experience (30 years) in the recombinant DNA techniques in question, I thought I might lay out what was done in the experiments and let you decide.