dengue

Dengue fever is a disease caused by a family of viruses that are transmitted by mosquitoes. It is an acute illness of sudden onset that usually follows a benign course with symptoms such as headache,fever, exhaustion, severe muscle and joint pain, swollen glands(lymphadenopathy), and rash. The presence of these symptoms is particularly characteristic of dengue. Other signs of dengue fever include bleeding gums, severe pain behind the eyes, and red palms and soles. Dengue can affect anyone but tends to be more severe in people with compromised immune systems. Because it is caused by one of four serotypes of virus, it is possible to get dengue fever multiple times. However, an attack of dengue produces immunity for a lifetime to that particular serotype to which the patient was exposed. Dengue hemorrhagic fever is a more severe form of the viral illness. Symptoms include headache, fever, rash, and evidence of haemorrhage(bleeding) in the body. bleeding in the nose or gums, black stools, or easy bruising are all possible signs of hemorrhage. This form of dengue fever can be life-threatening and can progress to the most severe form of the illness, dengue shock syndrome.
There are many causes that can caused someone to get dengue fever. After being bitten by a mosquito carrying the virus, the incubation period ranges from three to 15 days before the signs and symptoms of dengue appear in stages. Dengue starts with coldness, headache, pain upon moving the eyes, and low backache. Painful aching in the legs and joints occurs during the first hours of illness. The temperature rises quickly, with relatively low heart rate andlow blood pressure (hypotension). The eyes become reddened. A flushing or pale pink rash comes over the face and then disappears. Fever and other signs of dengue last for two to four days, followed by a rapid drop in body temperature with fully sweating. This previous a period with normal temperature and a sense of well-being that lasts about a day. A