Hepatitis E is a potentially serious acute disease. It is caused by the hepatitis E virus (HEV). The virus targets the liver. According to the World Health Organization (WHO), 20 million cases of hepatitis E infection occur every year, and 57,000 of them result in death (WHO). It is more common in developing countries. Hepatitis E usually resolves itself but may develop into acute liver failure.
The kilowatt (kW) is equal to one thousand (10 3) watts. This unit is typically used to express the output power of engines and the power of electric motors, tools, machines, and heaters. It is also a common unit used to express the electromagnetic power output of broadcast radio and television transmitters.
An electric heater rated at 1000 watts (1 kilowatt), operating for one hour uses one kilowatt-hour (equivalent to 3.6 megajoules) of energy. A television rated at 100 watts operating for 10 hours continuously uses one kilowatt-hour. A 40-watt light bulb operating continuously for 25 hours uses one kilowatt-hour.