Magic™ Mouse Anti-DENV pan NS1 Monoclonal antibody, clone 58RE6

In this review, we discuss how dengue disease can be diagnosed accurately at the viremia phase and the fever phase. Diagnostic tools currently used to detect dengue virus (DENV) are virus isolation, capture IgM and IgG ELISA, real-time polymerase chain reaction (RT-PCR), and immunochromatography of the dengue NS1 antigen. First, we explain the advantages, the challenges and the limitations of different diagnostic tests. This account is followed by several examples using biosensors for detection of several important DENV biomarkers. Finally, we discuss our opinions regarding future perspectives in this field. (C) 2015 Elsevier B.V. All rights reserved.

Background: Dengue is one of the most important mosquito-borne viral diseases in the world. The emergence and spread of four dengue viruses (DENVs) (serotypes) represent a global pandemic. The four distinct serotypes are, namely, DENV-1, DENV-2, DENV-3 and DENV-4. Very few dengue serotyping studies have been reported from Andhra Pradesh. In this context, the present study focuses on the circulating serotypes of dengue in South-Eastern Andhra Pradesh. Methodology: Study was done at Sri Venkateswara Institute of Medical Sciences, a teaching hospital in Tirupati, Andhra Pradesh. Acute phase dengue serum samples were collected and tested for NS1 antigen and anti-human IgM antibodies by enzyme-linked immunosorbent assay (ELISA). NS1-positive samples were further serotyped by reverse transcriptase real-time polymerase chain reaction (rRT-PCR). Results: A total of 398 serum samples were received from clinically suspected dengue fever cases. Of these, 150 (37.7%) samples were positive for NS1 and/or IgM ELISA. The 96 NS1 antigen-positive samples were further processed for serotyping, of which 36 were negative by rRT-PCR. DENV-2 (41%) was the predominant serotype, followed by DENV-4 (37%), DENV-3 (12%) and DENV-1 (10%) in descending order. Conclusion: This study reports the all four dengue serotypes' co-circulation. This is the first report from South Eastern Andhra Pradesh. Amongst four, DENV-2 was predominant followed by DEN V-4. The information of predominant serotypes can guide in forecasting dengue outbreaks and improving control measures of vectors thus may be helpful in the prevention of outbreaks.