Preventing typhoid has become particularly important because some strains, particularly in South Asia, are becoming resistant to antibiotics.
Australia beat Pakistan by an innings and 48 runs in the second test at Adelaide Oval on Monday to sweep their two-test series 2-0.
India on Sunday said that it destroyed terror camps inside neighbouring Pakistan in a retaliatory attack after militants from Pakistan attempted to infiltrate in restive Kashmir.
The Duke of Cambridge, Prince William and his wife Kate will begin their tour of Pakistan on Monday, in what will be the first visit by members of the British royal family in more than a decade.
Pakistani police have detained 20 suspects as they investigate the possibility of a serial killer being behind the suspected murder and sexual assault of three boys in a district which has a history of child abuse and abduction.