Water heating by a domestic water heater. Two conflicting safety issues affect water heater temperature—the risk of scalding from excessively hot water greater than , and the risk of incubating bacteria colonies, particularly "Legionella", in water that is not hot enough to kill them. Both risks are potentially life-threatening and are balanced by setting the water heater's thermostat to . The European Guidelines for Control and Prevention of Travel Associated Legionnaires’ Disease recommend that hot water should be stored at and distributed so that a temperature of at least and preferably is achieved within one minute at points of use. If there
Aleutian disease severe outbreak of AD on a Connecticut ranch, with a mortality of almost 100% in less than 6 months. The disease spread from minks to ferrets, as the two were raised on the same farms. Aleutian disease has also more currently been found among free range mink throughout Europe and North America. It is speculated that the disease has been transferred from farmed mink to those in the wild. This is most commonly due to escapees within farms, who when free are hybridizing with wild mink. There are different strains of this disease which have been documented. ADV is highly