Nigeria’s health minister, Isaac Adewole, said on Friday that his government is determined to rid the country of polio again. New cases recently landed Nigeria back on the list of countries where the disease is endemic. Adewole met with Rotary leaders at Rotary International World Headquarters in Evanston, Illinois, USA, to discuss Nigeria’s recent efforts to stem the outbreak. All three of the country’s cases were detected in the northern state of Borno, which was under the control of Boko Haram militants until recently. The World Health Organization (WHO) estimates that the virus has been...

Even as parts of Haiti were still recovering from a catastrophic 2010 earthquake, Hurricane Matthew tore through the impoverished island country Tuesday, leaving hundreds dead and many more homeless. The Category 4 storm has affected an estimated 330,000 people in Haiti, including 6,400 who have been moved to temporary shelters. Extensive damage to main bridges and other transportation networks have left some areas cut off and vulnerable. Torrential rains have resulted in flooding and landslides. And contaminated water supplies threaten to lead to a surge in cholera cases and other waterborne...