The laboratorial diagnosis of dengue: applications and implications
- PMID: 20300385
- PMCID: PMC2840934
- DOI: 10.4103/0974-777X.52980
The laboratorial diagnosis of dengue: applications and implications
Abstract
The diagnosis of infection by the dengue virus relies, in most cases, on the clinical judgment of the patient, since only a few major centers have clinical laboratories that offer diagnostic tests to confirm the clinical impressions of an infection. At present, routine laboratory diagnosis is done by different kinds of testing. Among them are the methods of serological research, virus isolation, detection of viral antigens, and detection of viral genomes. The continued development of diagnostic tests, which are cheap, sensitive, specific, easy to perform, and capable of giving early diagnosis of the dengue virus infection is still a need. There are also other obstacles that are not specifically related to the technological development of diagnostic methods. For instance, infrastructure of the laboratories, the training of personnel, and the capacity of research of these laboratories are still limited in many parts of Brazil and the world, where dengue is endemic. Clinical laboratories, especially the ones that serve regions with a high incidence of dengue, should be aware of all the diagnostic methods available for routine these days, and choose the one that best suit their working conditions and populations served, in order to save lives.
Keywords: Clinical laboratory; Dengue; Diagnosis.
Conflict of interest statement
References
-
- De Paula SO, Fonseca BA. Dengue: a review of the laboratory tests a clinician must know to achieve a correct diagnosis. Braz J Infect Dis. 2004;8:390–8. - PubMed
-
- Halstead SB. Dengue. Lancet. 2007;370:1644–52. - PubMed
-
- Chadwick D, Arch B, Wilder-Smith A, Paton N. Distinguishing dengue fever from other infections on the basis of simple clinical and laboratory features: Application of logistic regression analysis. J Clin Virol. 2006;35:147–53. - PubMed
-
- Ng CF, Lum LC, Ismail NA, Tan LH, Tan CP. Clinicians' diagnostic practice of dengue infections. J Clin Virol. 2007;40:202–6. - PubMed
-
- Premaratna R, Pathmeswaran A, Amarasekara ND, Motha MB, Perera KV, de Silva HJ. A clinical guide for early detection of dengue fever and timing of investigations to detect patients likely to develop complications. Trans R Soc Trop Med Hyg. 2009;103:127–31. - PubMed