Dengue
Dengue fever may be a mosquito-borne tropical disease caused by the
dengue virus. Symptoms typically begin three to 14 days after infection. These may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic rash. Recovery generally takes two to seven days. during a small proportion of cases, the disease develops into severe dengue, also referred to as
dengue haemorrhagic fever , leading to bleeding,
low levels of blood platelets and plasma leakage, or into
dengue shock syndrome, where dangerously
low vital sign occurs.
Dengue is spread by several
species of female mosquitoes of the Aedes type, principally A. aegypti. The
virus has five types; infection with one type usually gives lifelong
immunity thereto type, but only short-term
immunity to the others. Subsequent infection with a special type increases the danger of severe complications. variety of tests are available to verify the diagnosis including detecting antibodies to the
virus or its RNA.