Margie McGlynn, president of Merck Vaccines and Infectious Diseases, has resigned effective November 1st. Amy Rose, a spokeswoman for the company, commented, “She has professional and personal aspirations she’d like to pursue.” A replacement has not yet been named. Ms. McGlynn oversaw the launch of Gardasil cervical cancer vaccine, Rotateq rotavirus vaccine and Zostavax shingles vaccine, among other products. She spent 26 years with the company and previously helped run U.S....