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.
Hi I am Michele Jaco here today for About.com with an overview of Las Vegas average summer temperatures. Summer month are usually May through September with July normally the hottest month with an average high of 104 Â°F and an average low of 79 Â°F, and August is only slightly cooler. Vegas is the desert so humidity is very low, so these temperatures are actually quite comfortable for many.