During the summer months of 2007, seven fatal infections caused by Naegleria fowleri occurred in Florida, Texas, and Arizona. All cases were in boys and young men who participated in recreational water sports at freshwater lakes during the summer. At the time, Florida was suffering from drought conditions through much of the state, leading to lowered water levels and increased temperature of the water. Arizona was in moderate to severe drought conditions during most of 2007, while Texas experienced typical high temperatures and had drought conditions present in 2005, 2006, and 2007. What connection, if any, exists between drought and these tragic fatalities?