STANFORD, Calif.--(BUSINESS WIRE)--A single dose of antibiotics can significantly aid healing of the severe tearing that occurs in vaginal tissues during many births, according to researchers at Lucile Packard Children’s Hospital at Stanford, the Stanford University School of Medicine and Santa Clara Valley Medical Center. The study is the first to show that the simple treatment can prevent many of the short- and long-term repercussions of this relatively common complication of childbirth.