Dengue fever is a tropical disease that is caused by the dengue virus. It is spread by various species of female Aedes type mosquitoes. The symptoms of dengue appear after three to fourteen days of infection. The most common symptoms include headache, fever, vomiting, muscle and joint pains and skin rashes. It can be life-threatening in some cases. It can also affect other body systems. A few of the neurological disorders can also occur in dengue such as transverse myelitis and Guillain-barre syndrome. It can cause miscarriage, low birth rate and premature birth in a pregnant woman. Dengue can develop into dengue hemorrhagic fever that causes bleeding, low levels of blood platelets and blood plasma leakage. The diagnosis of dengue is based on physical examination and symptoms. The book presents researches and studies performed by experts across the globe. It contains some path-breaking studies about dengue. It will serve as a valuable source of reference for graduate and post graduate students.