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NS1 antigen test (nonstructural protein 1) is a test for dengue, introduced in 2006. It allows rapid detection on the first day of fever, before antibodies appear some 5 or more days later. [ 1 ] It has been adopted for use in some 40 nations.
Laboratory findings may include elevated triglyceride levels, ... or the Dengue virus. [6] ... immunologic abnormalities, and lymphohistiocytosis. Most cases have ...
Dengue virus (DENV) is the cause of dengue fever.It is a mosquito-borne, single positive-stranded RNA virus of the family Flaviviridae; genus Flavivirus. [1] [2] Four serotypes of the virus have been found, and a reported fifth has yet to be confirmed, [3] [4] [5] all of which can cause the full spectrum of disease. [1]
A person who has recently been infected by a virus will produce antibodies in their bloodstream that specifically recognize that virus. This is called humoral immunity. Two types of antibodies are important. The first called IgM is highly effective at neutralizing viruses but is only produced by the cells of the immune system for a few weeks.
Dengue fever (UK: / ˈ d ɛ ŋ ɡ eɪ / or US: / ˈ d ɛ ŋ ɡ iː /), also known as breakbone fever, is an infectious tropical disease caused by the dengue virus. Symptoms include fever , headache , myalgias and arthralgias , and a characteristic skin rash that is similar to measles .
The plaque reduction neutralization test is used to quantify the titer of neutralizing antibody for a virus. [1] [2] The serum sample or solution of antibody to be tested is diluted and mixed with a viral suspension. This is incubated to allow the antibody to react with the virus. This is poured over a confluent monolayer of host cells.
In those outbreaks; dengue virus-2 was the infecting serotype. 205 cases of dengue hemorrhagic fever and dengue shock syndrome occurred during the 1997 outbreak, all in people older than 15 years. All but three of these cases were demonstrated to have been previously infected by dengue virus-1 during the first outbreak. [ 49 ]
Dengue fever is a mosquito-borne tropical disease caused by the dengue virus. [1] Symptoms typically begin three to fourteen days after infection. [2] This may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash. [1] [2] Recovery generally takes less than two to seven days. [1]