Hepatitis B is a serious infection that affects the liver. It is caused by the hepatitis B virus. 1  In 2009, about 38,000 people became infected with hepatitis B.  Each year about 2,000 to 4,000 people die in the United States from cirrhosis or liver cancer caused by hepatitis B.
Nearly every day in April warms to over 60 Â°F (21 Â°C) in Las Vegas. The city averages 3 days this month when the thermometer reaches into the 90s Â°F (over 32 Â°C). Temperatures above 100 Â°F (38 Â°C) are not expected here during April. At night, the thermometer dips to 50 Â°F (10 Â°C) or below on 5 days.
Winters are generally quite pleasant in Las Vegas, with warm weather still a feature between the months of December and February. Naturally the temperature decreases and can occasionally hit an average low temperature of 1Â°C, but an average maximum temperature of 17Â°C can compensate for that.he pleasant nature of spring in Las Vegas makes it a terrific time to visit, with the regular maximum temperature at around 21Â°C in March, with the season lasting until the end of May.