I paid $1.69 for my Snack Size McFlurry (a full ten cents cheaper than the $1.79 charged at my local McDonald's). I have to say, McDonald's soft serve is pretty good, it's soft but still holds together pretty well. Add bits and pieces of Reese's Peanut Butter Cups and it's dynamite!
Alternative Title: Jonas Edward Salk Jonas Salk, in full Jonas Edward Salk, (born October 28, 1914, New York, New York, U.S.âdied June 23, 1995, La Jolla, California), American physician and medical researcher who developed the first safe and effective vaccine for polio.
Now Salk could speed up his research. Using formaldehyde, he killed the polio virus but kept it intact enough to trigger the body's response. On July 2, 1952, Salk tried a refined vaccine on children who'd already had polio and recovered.After the vaccination, their antibodies increased.t was cheaper to make and easier to take than Salk's injectable vaccine. In the U.S., cases of polio are now extremely rare, and ironically, are almost always caused by the Sabin vaccine itself -- being live, the virus can mutate to a stronger form.