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.
The kilowatt-hour (symbolized kWâh) is a unit of energy equivalent to one kilowatt (1 kW) of power sustained for one hour. One watt is equal to 1 J/s. One kilowatt-hour is 3.6 megajoules, which is the amount of energy converted if work is done at an average rate of one thousand watts for one hour.Note that the international standard SI unit of energy is the joule.The hour is a unit of time outside the SI, so the kilowatt-hour is a non-SI unit of energy. kilowatt-hour is the amount of energy equivalent to a steady power of 1 kilowatt running for 1 hour, or 3.6 megajoules. Energy cost can be illustrated in a similar example: a 100-watt (i.e. 0.1 kilowatt) light bulb turned on for 8 hours uses 800 Wâh or 0.8 kWâh.