W.H.O. Approves a Safe, Inexpensive Typhoid Vaccine Vaccination and Immunization, Typhoid, Salmonella (Bacteria)
By DONALD G. McNEIL Jr. from NYT Health http://nyti.ms/2CMgRzd
The first typhoid vaccine safe for infants has been used in India since 2005, but won final certification only after an unusual experiment on university students.