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The test was once part of the World Health Organization (WHO) algorithm for diagnosis of dengue fever, [3] however it is no longer used in the latest WHO guidance. [4] Studies have shown that the tourniquet test has low predictive value for dengue fever and should be used in conjunction with other tests for a reliable diagnosis. [5] [6] [7] [8]
Dengue fever is a mosquito-borne disease caused by dengue virus, prevalent in tropical and subtropical areas. It is frequently asymptomatic ; if symptoms appear, they typically begin 3 to 14 days after infection.
When laboratory tests for dengue fever become positive where day zero is the start of symptoms, 1st refers to in those with a primary infection, and 2nd refers to in those with a secondary infection. [7] Dengue fever may be diagnosed by microbiological laboratory testing. [26]
Graph of when laboratory tests for dengue fever become positive. Day zero refers to the start of symptoms, 1st refers to in those with a primary infection, and 2nd refers to in those with a secondary infection. [17] The diagnosis of dengue fever may be confirmed by microbiological laboratory testing.
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 viral hemorrhagic fever is a possible cause of the Plague of Athens during the Peloponnesian War. [13] A viral hemorrhagic fever is an alternate theory of the cause of the Black Death and the Plague of Justinian [14] The initial, and currently only, outbreak of Lujo virus in September–October 2008 left four of five patients dead. [15]
This year, the incidence of dengue fever globally has been the highest on record, especially in Latin American countries, where more than 9.7 million dengue cases have been reported. That's twice ...
Viral hemorrhagic fevers (VHFs) are a diverse group of diseases. Prevention methods are very similar for the different viruses . The vast majority of the information in this article is from the document "Infection Control for Viral Hemorrhagic Fevers in the African Health Care Setting", which was published in December 1998. [ 1 ]