Hepatitis B is a liver disease caused by the hepatitis B virus.
The spread of hepatitis B occurs when blood from an infected person enters the body of a person who is not infected. Hepatitis B is spread in the following ways:
Dengue fever and dengue hemorrhagic fever are viral illnesses transmitted by the bite/sting of a mosquito. The mosquito species that carries dengue virus is active, biting during daylight hours, with a peak of activity just after daybreak, and then again for several hours before dark. These insects are often present indoors, and are common in areas of human habitation, including urban and rural areas throughout the tropical areas of the world.
Symptoms of dengue fever include: