Kelleigh Nelson

One thing that happened this week that I didn’t get around to writing about is the 100th anniversary of the birth of Jonas Salk, which was October 28. In the annals of medicine, few people have had as immediate a positive effect as Jonas Salk did when he developed the inactivated polio vaccine (IPV). At the time the IPV became available in 1955, annual epidemics of polio were a regular feature of American life, causing panics and closing public swimming pools with a distressing frequency, causing thousands of cases of paralysis per year and many deaths. Indeed, in 1952 one particularly bad…