scholarly journals THE STUDY OF DETECTION OF DENGUE CASES BY NS1 ANTIGEN AND IGM ANTIBODY IN RIMS, ADILABAD, INDIA.

2019 ◽  
Vol 3 (11) ◽  
Author(s):  
Dr. Tanajee Zade ◽  
Dr. K. Srinivas ◽  
Dr. Akshay Berad
Keyword(s):  
Early Diagnosis ◽  
Dengue Fever ◽  
Dengue Infection ◽  
Tertiary Care ◽  
High Morbidity ◽  
Care Hospital ◽  
Serum Samples ◽  
Igg Antibody ◽  
Igm Antibody ◽  
Ns1 Antigen

Dengue fever is an acute febrile arboviral disease affecting tropical & subtropical regions of the world. Dengue infection produces a spectrum of clinical illness, ranging from an asymptomatic to its most severe form like dengue haemorrhagic fever and dengue shock syndrome. In view of high morbidity and mortality, it is imperative to have a rapid and sensitive laboratory assay for early detection of the dengue infection. The newer parameter NS1 antigen has gained a lot of interest for early diagnosis of the disease. Detection of non-structural antigen (NS1 Ag), IgM and IgG antibody may help in the early diagnosis. The present study was conducted in a RIMS Adilabad, tertiary care hospital & medical college in the Department of  General Medicine. A total of 100 serum samples were processed from suspected cases of dengue fever by using dengue test for detection of NS1 antigen and IgG antibodies. Platelet counts of all these cases were noted. . Of these 100 subjects 85 were serologically proved to have dengue illness, 57 patients were NS1 antigen positive, 28 patients were IgM antibody positive patients. As the NS1 antigen is detectable in blood from day one after onset of fever, its assay is an effective tool for early diagnosis of dengue infection so as to avoid complications. Key words:  Dengue, NS1 Antigen, IgM antibody, Platelet

scholarly journals Seroprevalence of Dengue Infection in a Tertiary Care Hospital in Assam

2018 ◽  
Vol 7 (1) ◽  
pp. 1582 ◽  
Author(s):  
Liza Goswami ◽  
Chowdhury Runumi ◽  
Elmy S. Rasul
Keyword(s):  
Dengue Infection ◽  
Tertiary Care ◽  
Age Groups ◽  
Hemorrhagic Fever ◽  
Health Concern ◽  
Care Hospital ◽  
Serum Samples ◽  
Igm Antibody ◽  
Ns1 Antigen ◽  
Antibody Elisa

<p><strong>Background:</strong> Dengue fever (DF) and dengue hemorrhagic fever (DHF) are important arthropod borne viral diseases. Dengue in India has dramatically expanded over the last few decades, with rapidly changing epidemiology. Dengue is emerging as major public health concern in northeast India and spreading with increased morbidity.</p><p><strong>Objective:</strong>This study was carried out to determine the seroprevalence of Dengue infection among patients attending in Fakhruddin Ali Ahmed Medical College and Hospital, Barpeta, Assam during the period 2013-2016.</p><p><strong>Methods:</strong> A retrospective study was done from the year 2013 to 2016. A total of 340 serum samples received in the department of microbiology FAAMCH, were tested for the confirmation of suspected cases of dengue. Dengue NS1 antigen and Dengue IgM antibody ELISA tests were performed for the confirmation of dengue cases. We estimated the incidence by applying age, sex and season adjusted dengue positivity.</p><p><strong>Results:</strong> Out of 340 samples tested, 68 were positive either by NS1 antigen or for IgM antibody ELISA tests. These comprised all age groups of both sexes with higher incidence of cases in young males aged 26– 60 years.</p><p><strong>Conclusion:</strong> From this study, it is apparent that dengue surveillance and control should be enhanced by wider use of laboratory testing to confirm dengue as a cause of fever of unknown origin, especially during the local dengue transmission season.</p>

scholarly journals Dengue NS1 Antigen: A Tool in Early Detection of Dengue Virus Infection

2014 ◽  
Vol 15 (1) ◽  
pp. 28-30 ◽  
Author(s):  
Rama Biswas ◽  
Fazle Rabbi Mohammed ◽  
Poly Sengupta ◽  
Hasan Shahrear Ahmed ◽  
Md. Motlabur Rahman ◽  
...  
Keyword(s):  
Virus Infection ◽  
Early Diagnosis ◽  
Dengue Virus ◽  
Complete Blood Count ◽  
Tertiary Care ◽  
Care Hospital ◽  
Igg Antibody ◽  
Dengue Virus Infection ◽  
Igm Antibody ◽  
Ns1 Antigen

Objectives: This aim of the study was to evaluate the efficacy of NS1 antigen assay for early diagnosis of dengue virus infection in a tertiary care hospital. Methods: This cross sectional study was carried out in medicine unit of Square hospital from May to August 2013. Total 100 patients with dengue fever were included. Complete blood count, alanine aminotransferase (ALT), aspartate aminotransferase (AST), Dengue NS1 antigen and IgM and IgG antibodies of dengue virus were done in all cases. Results: Of the 100 sera tested, 75% were positive for dengue virus infection based on dengue NS1 antigen, IgM antibody and IgG antibody. Dengue NS1 antigen and IgM, IgG antibody were able to detect dengue virus infection between day 1 to day 8 in 92% of samples, 86.7% of samples and 82.6% of samples respectively. Sixty nine percent (69%) were found positive for dengue NS1 antigen, 65% were IgM positive and 62% were IgG positive. Based on the dengue NS1 antigen and IgM antibody combination, 74% were positive for dengue virus infections. Sensitivity of Dengue NS1 antigen was 92.3% and specificity of 74.28% in comparison to IgM antibody. Based on the antigen and IgG antibody combination, detection rate increased to 75%. Sensitivity of dengue NS1 antigen was 90.3% and specificity of 65.8% in comparison to IgG antibody. Conclusion: Dengue NS1 antigen is a useful, sensitive and specific test for early diagnosis of dengue virus infection and it improves diagnostic efficiency in combination with antibody test.DOI: http://dx.doi.org/10.3329/jom.v15i1.19856 J Medicine 2014; 15: 28-30

scholarly journals Clinical profile of dengue fever in children: analysis of 2017 outbreak from Central Kerala, India

2018 ◽  
Vol 5 (6) ◽  
pp. 2265 ◽  
Author(s):  
Senthil Kumar K. ◽  
Rajendran N. K. ◽  
Ajith Brabhukumar C.
Keyword(s):  
Dengue Fever ◽  
Dengue Infection ◽  
Tertiary Care ◽  
Hemorrhagic Fever ◽  
Warning Signs ◽  
Clinical Profile ◽  
Severe Dengue ◽  
High Morbidity ◽  
Care Hospital ◽  
High Grade Fever

Background: In India, dengue epidemics are becoming more frequent (WHO, 2008). The majority of dengue viral infections are self-limiting, but complications may cause high morbidity and mortality. The objective of this study is to assess the clinical profile of the dengue infection in children less than 15 years of age and to evaluate the outcomes of dengue fever from March 2017 to July 2017 at the Pediatric Department of Karuna Medical College, the tertiary care hospital in Palakkad.Methods: In this retrospective study, medical records were reviewed and analyzed. Patients with suspected dengue infection were classified further into 2 groups, Dengue fever (probable dengue, dengue with warning signs) and ‘Severe Dengue’ (dengue hemorrhagic fever and/or dengue shock syndrome (DHF/DSS) according to WHO.Results: A total of 77 cases were classified into 67 (87%) non-severe and 10 (13%) severe dengue cases. The most common age of presentation was above 10 yrs. The mean age of admission was 8.9 yrs. The most common presenting symptom was fever seen in 93% followed by vomiting in 68%. Elevation in Aspartate transaminase (SGOT) and thrombocytopenia were found in 32.4 %.Conclusions: High grade fever, vomiting, abdominal pain and skin rash with normal or low platelet count were the presenting features. Early diagnosis, monitoring and prompt supportive management can reduce mortality.

scholarly journals Evaluation of Six Commercial Point-of-Care Tests for Diagnosis of Acute Dengue Infections: the Need for Combining NS1 Antigen and IgM/IgG Antibody Detection To Achieve Acceptable Levels of Accuracy

2011 ◽  
Vol 18 (12) ◽  
pp. 2095-2101 ◽  
Author(s):  
Stuart D. Blacksell ◽  
Richard G. Jarman ◽  
Mark S. Bailey ◽  
Ampai Tanganuchitcharnchai ◽  
Kemajittra Jenjaroen ◽  
...  
Keyword(s):  
Dengue Fever ◽  
Sensitivity And Specificity ◽  
Dengue Infection ◽  
Antibody Test ◽  
Antibody Detection ◽  
Sample Collection ◽  
Igg Antibody ◽  
Igm Antibody ◽  
Ns1 Antigen ◽  
Antibody Tests

ABSTRACTSix assays were evaluated in this study to determine their suitability for the diagnosis of acute dengue infection using samples from 259 Sri Lankan patients with acute fevers (99 confirmed dengue cases and 160 patients with other confirmed acute febrile illnesses): (i) the Merlin dengue fever IgG & IgM combo device (Merlin), (ii) the Standard Diagnostics Dengue Duo nonstructural 1 (NS1) antigen and IgG/IgM combo device (Standard Diagnostics, South Korea), (iii) the Biosynex Immunoquick dengue fever IgG and IgM (Biosynex, France) assay, (iv) the Bio-Rad NS1 antigen strip (Bio-Rad, France), (v) the Panbio Dengue Duo IgG/IgM Cassette (Inverness, Australia), and (vi) the Panbio dengue NS1 antigen strip (Inverness, Australia). The median number of days of fever prior to admission sample collection was 5 days (interquartile range, 3 to 7 days). Sensitivity and specificity of the NS1 antigen tests ranged from 49 to 59% and from 93 to 99%, respectively, and sensitivity and sensitivity of the IgM antibody test ranged from 71 to 80% and from 46 to 90%, respectively. Combining the NS1 antigen and IgM antibody results from the Standard Diagnostics Dengue Duo test gave the best compromise of sensitivity and specificity (93% and 89%, respectively) and provided the best sensitivity in patients presenting at different times after fever onset. The Merlin IgM/IgG antibody tests correctly classified 64% and 86% of the primary and secondary dengue infection cases, respectively, and the Standard Diagnostics IgM/IgG antibody tests correctly classified 71% and 83% of the primary and secondary dengue infection cases, respectively. This study provides strong evidence of the value of combining dengue antigen- and antibody-based test results in the rapid diagnostic test (RDT) format for the acute diagnosis of dengue.

scholarly journals CLINICAL AND HEMATOLOGICAL PROFILE OF PATIENTS WITH DENGUE FEVER AT A TERTIARY CARE HOSPITAL – AN OBSERVATIONAL STUDY

2018 ◽  
Vol 10 (1) ◽  
pp. e2018021 ◽  
Author(s):  
Vishal Vishnu Tewari ◽  
Kunal Tewari ◽  
Ritu Mehta
Keyword(s):  
Dengue Fever ◽  
Tertiary Care ◽  
Dengue Shock Syndrome ◽  
Hemorrhagic Fever ◽  
Annual Data ◽  
Care Hospital ◽  
Igg Antibody ◽  
Hematological Profile ◽  
Ns1 Antigen ◽  
Duration Of Hospitalization

AbstractBackground: Dengue is a major health issue with seasonal rise in dengue fever cases imposing an additional burden on hospitals, necessitating bolstering of services in the emergency department, laboratory with creation of additional dengue fever wards.Objectives: To study the clinical and hematological profile of dengue fever cases presenting to a hospital.Methods: Patients with fever and other signs of dengue with either positive NS1 antigen test or IgM or IgG antibody were included. Age, gender, clinical presentation, platelet count and hematocrit were noted and patients classified as dengue fever (DF), dengue hemorrhagic fever (DHF) or dengue shock syndrome (DSS). Duration of hospitalization, bleeding manifestations, requirement for platelet component support and mortality were recorded.Results: There were 443 adults and 57 children between 6 months to 77 year age. NS1 was positive in 115 patients (23%). Fever (99.8%) and severe bodyache (97.4%) were the commonest presentation. DF was seen in 484 (96.8 %), DHF in 10 (2%) and DSS in 6 cases (1.2%). OPD treatment was needed in 412 (82%) and hospitalization in 88 (18%). Intravenous fluid resuscitation was needed in 16 (3.2%) patients. Thrombocytopenia was seen in 335 (67%) patients at presentation. Platelet transfusion was needed in 46 (9.2%). PRC transfusion was given in 3 patients with DF and 10 of DHF. Death occurred in 03 DSS and 2 DHF patients. Conclusions: Majority of DF cases can be managed on OPD basis. DHF and DSS carry high mortality. Hospitals can analyze annual data for resource allocation for capacity expansion.

scholarly journals Clinical Profile of Dengue Fever in Children: A Study from Southern Odisha, India

Scientifica ◽  
2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Shubhankar Mishra ◽  
Ramya Ramanathan ◽  
Sunil Kumar Agarwalla
Keyword(s):  
Dengue Fever ◽  
Viral Infections ◽  
Dengue Infection ◽  
Tertiary Care ◽  
Case Fatality ◽  
Clinical Profile ◽  
Severe Dengue ◽  
High Morbidity ◽  
Care Hospital ◽  
The Mean

Background. In India, dengue epidemics are becoming more frequent (WHO, 2008). The majority of dengue viral infections are self-limiting, but complications may cause high morbidity and mortality.Objectives. To assess the clinical profile of the dengue infection in children less than 14 years of age and to evaluate the outcomes of dengue fever from September 2013 to August 2015 at the Pediatric Department of Maharaja Krishna Chandra Gajapati Medical College, the largest tertiary care hospital of southern Odisha.Results. A total of 97 cases were classified into 84 (86.59%) nonsevere and 13 (13.40%) severe dengue cases. The most common age of presentation was above 11 yrs. The mean age of admission was 8.7 yrs. The most common presenting symptom was fever seen in 100% and hepatomegaly (43.8%), the most common physical finding. Gastrointestinal bleeding was markedly seen in severe dengue (76.9%). Elevation in aspartate transaminase (SGOT) was found in 47.42% and thrombocytopenia in 27.5%. The correlation between hepatomegaly and elevated SGOT was significant (Pvalue 0.0346). Case fatality rate (CFR) was 1.03%. The mean duration of hospitalisation was 3.8 days.Conclusion. In children, if symptoms like fever, pain, rashes, and vomiting are associated with hepatomegaly and elevated SGOT in context of low TPC, a strong possibility of dengue fever is present, especially in an epidemic setting. Early suspicion and effective management can reduce the severity.

scholarly journals A study to determine the severity based outcome of pediatric patients with dengue spectrum disorders in a tertiary care hospital

2019 ◽  
Vol 7 (1) ◽  
pp. 154
Author(s):  
Vijaysuryakiran K. M. ◽  
Mounesh Pattar ◽  
Sanjay Paida
Keyword(s):  
Dengue Fever ◽  
Dengue Infection ◽  
Tertiary Care ◽  
Warning Signs ◽  
Severe Dengue ◽  
Warning Sign ◽  
High Morbidity ◽  
Care Hospital ◽  
Increased Risk ◽  
Spectrum Disorders

Background: Dengue Fever (DF) has become a major global public health problem. The majority of dengue viral infections are self-limiting, but complications may cause high morbidity and mortality. Dengue infection ranges from mild illness to a severe form of haemorrhagic fever and shock syndrome which may prove fatal. Objective of the study was to determine severity-based outcome in children with dengue spectrum disorder in a tertiary care centre in Mumbai.Methods: It was a prospective, non-interventional, observational, surveillance study conducted over 14 months (from September 2016 till October 2017). Children aged <18 years admitted to Nanavati Super Specialty Hospital, Mumbai diagnosed with dengue spectrum disorders according to WHO 2009 classification with clinical features and laboratory investigation confirming dengue were enrolled as study participants.Results: Out of 127 patients, 57(44.9%) were females and 70(55.1%) were males. 81(63.8%) were ward patients, 46(36.2%) required PICU admission. 17(13.4%) patients had dengue with warning signs, 100(78.7%) had dengue without warning signs and 10(7.9%) had severe dengue according to WHO 2009 case classification of dengue. 122(96.1%) were discharged home, 4(3.1%) died of dengue and dengue related complications all four deaths occurred in children with severe dengue.Conclusions: This study showed that commonest inpatient admission category among children with dengue according to WHO 2009 classification was dengue without warning signs Overall mortality in patients with dengue fever without warning sign as well those with warning sign remains very low. Children presenting with severe dengue associated with either organ failure or refractory shock are at increased risk of mortality.

scholarly journals A Retrospective Study of Clinical and Laboratory Profile of Dengue Fever in Tertiary Care Hospital, Wardha, Maharashtra, India

2020 ◽  
Vol 14 (3) ◽  
pp. 1935-1939
Author(s):  
Praful S. Patil ◽  
Dhruba Hari Chandi ◽  
Smita Damke ◽  
Shital Mahajan ◽  
R. Ashok ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Dengue Fever ◽  
Monsoon Season ◽  
Dengue Infection ◽  
Tertiary Care ◽  
Public Health Problem ◽  
High Morbidity ◽  
Care Hospital ◽  
Age Group ◽  
Post Monsoon

Dengue disease is caused by dengue virus which is a vector born viral infection. The prevalence of dengue has increased dramatically from past few decades. The clinical symptoms vary from asymptomatic to severe hemorrhagic fever leads to high morbidity and mortality. Method- This retrospective study was carried out during January 2019 to December 2019. The laboratory test was done by using J Mitra & Co on Day 1 of their visit to the hospital which shows NS1, IgM and IgG reactivity towards dengue fever. The clinical profile information data was collected from patient records. Out of 640 samples 62.18% (398) was positive. The percentage of positive males and females were 60.78%, 64.23% respectively. The highest prevalence of dengue infection was observed more in age group between 31-40 years (81.69%) and least prevalence in age group 71-80 years (36.36%). Most of the patients were positive for NS1Ag121 (30.4%) followed by IgM positive 87 (21.9%) & 59 (14.8%) positive for both IgM and NS1 Ag The highest number of infections was seen during October (75.8%) post monsoon season. All patients had a fever, followed by head ache (82%) and body pains (66.4%), 64.84% stayed in the hospital less than 5 days. In tropical and sub-tropical regions dengue is still a leading public health problem especially during rainy and post monsoon seasons. Both NS1 Ag and IgM detection in early acute phase has potential diagnostic value. So, to reduce mortality there need to initiate community-based cohort studies to predict the pace of dengue spread based on clinical presentation and laboratory findings during epidemics in India. Aedesaegypti is a common vector for transmission of DENV, CHIKV and ZIKV, so there is a need to screen for these infections in endemic areas.

scholarly journals Dengue IgM antibody sero-status assessment: a current experience in a teaching institution

2017 ◽  
Vol 4 (3) ◽  
pp. 661
Author(s):  
Deepti Kiran ◽  
Balvinder Singh Arora ◽  
Arun Gogna ◽  
K. C. Aggarwal
Keyword(s):  
Dengue Infection ◽  
Tertiary Care ◽  
P Value ◽  
New Delhi ◽  
Care Hospital ◽  
Serum Samples ◽  
Igm Antibody ◽  
Elisa Testing ◽  
Status Assessment ◽  
And Gender

Background: In 2015, Delhi city experienced the worst outbreak of dengue infection since 1996 and our laboratory received a very high number of cases for IgM ELISA testing following clinicians’ referrals. The present study intends to correlate IgM antibody response with duration of fever, platelets counts and ‘with age and gender distribution’ of such cases attending OPDs and subsequently admitted to the medicine and pediatric wards in our tertiary care hospital, New Delhi, albeit, with some useful conclusions and suggestions.Methods: A hospital based observational study was conducted enrolling a total of 500 cases, clinically suspected of DF/DHF/DSS that either reported directly or were referred to Safdarjung Hospital from region in and around Delhi and NCR and subsequently admitted to Emergency Medicine and Paediatrics wards. A total of 500 cases and 50 controls were tested for IgM antibody by ‘IgM antibody capture ELISA (MAC ELISA).Results: Of total 500 serum samples tested, 169 i.e. 33.8% were found to be sero positive. Seropositivity was more among the males 99/169 (58.57%) than the females 70/169 (41.43%). The highest numbers of cases were seen in the age group 41-60 years (46.15%). Amongst seropositive cases, 146 (86.39%) cases had fever of >5 days duration while remaining 23 (13.60%) presented with fever of <5 days. Low platelet count between 20,000-1L cells/mm3 was a feature in all the seropositive cases and statistically it was found significant (p-value 0.001).Conclusions: Detection of IgM specific antibodies by MAC ELISA in cases with high index of clinical suspicion continues to be an effective tool providing a supportive criterion to clinical diagnosis, especially during outbreak periods.

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