A plane sprays coca fields in San Miguel, Colombia, in 2006. The Colombian government announced this week that it is phasing out the U.S.-backed aerial coca-eradication program over health concerns.
William Fernando Martinez/AP
Reid Kennedy, materials manager at San Francisco General Hospital, stands next to racks of saline solution. He has had to carefully manage the hospital's supply of saline during this shortage.
Mark Andrew Boyer/KQED