Dengue infection: its prevalence with seasonal variations

Biradar, Asmabegaum; Kauser, Yasmeen; Itagi, Irfan; Jamadar, Nadeem Akthar

doi:10.5958/2394-5478.2016.00021.2

Cited by 3 publications

(4 citation statements)

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“…10,13 In the present study out of 2213 clinically suspected cases, 475 (21.46%) were found to be positive for dengue infection either by NS1 or IgM ELISA. The results were congruent with other studies [14][15][16][17][18] whereas few other studies have reported lower prevalence rate ranging 3-13% [19][20][21][22] and some studies have reported higher prevalence i.e. 40%.…”

Section: Discussionsupporting

confidence: 91%

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Dengue Infection - prevalence and seasonal variation among patients attending a tertiary care hospital at Chamarajanagar, Karnataka

2020

IJMR

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Introduction: Dengue fever is an emerging acute febrile illness caused by arboviruses and presenting with wide spectrum of clinical manifestations ranging from self-limiting asymptomatic infection to severe fatal infection like Dengue hemorrhagic shock with unpredictable outcome. It is endemic in India and in recent years it is appearing in the form of epidemics especially during rainy season. Objectives 1. To determine seroprevalence of dengue virus among clinically suspected cases. 2. To determine the seasonal variation of dengue infection in the study setting. 3. To study the demographic profile of dengue positive patients. Materials and Methods: A cross sectional study was done at a tertiary care hospital, Chamarajanagar using secondary data which were maintained in the microbiology laboratory registers, for clinically suspected dengue patients reported to the hospital from January-December 2017. Prevalence was estimated by analyzing data for the results of both NS1antigen and IgM antibody by ELISA tests and any variations in disease reporting by gender, age and season were assessed. Statistical analysis was done using WHO Epi info software version 3.5.4. Results: A total of 2213 serum samples were analyzed during the study period. Out of which 475 samples (21.46%) were found positive for dengue infection either by NS1 or IgM ELISA. The proportion of dengue cases was higher in monsoon season with maximum rate of positivity in August (55.37%). Paediatric population was the most common affected group (30.33%). Conclusion:The present study confirms that dengue is mainly a disease of rainy season and also identifies certain vulnerable groups for effective planning of interventions.

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Section: Discussionsupporting

confidence: 91%

“…30.33% followed by 16-30 years i.e. 20.4% similar to findings of several Indian [14][15][16][17] and international studies. 28,29 On the contrary few other Indian studies have reported 15 to 45 years as the most affected age group.…”

Section: Discussionsupporting

confidence: 88%

Dengue Infection - prevalence and seasonal variation among patients attending a tertiary care hospital at Chamarajanagar, Karnataka

2020

IJMR

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“…In the post-monsoon months of September to December, dengue fever cases spiked due to the reduced extrinsic incubation time of DENV, which is attributable to meteorological variables, including ambient temperatures and rainfall. Similar peaks were observed in various studies across India [ 9 - 11 ]. Research shows that Delhi and Rajasthan also experience a peak season for dengue during the same period [ 12 ].…”

Section: Discussionsupporting

confidence: 88%

Investigating the Clinico-Demographic Characteristics of Dengue Fever and Its Seroprevalence at a Tertiary Care Hospital in Northern India

Gupta,

Shakya,

Mishra

et al. 2024

Cureus

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Background and objective Dengue virus (DENV) is a major global health threat, causing over 50,000 deaths annually. The state of Uttar Pradesh (UP) in India faces significant challenges due to the increasing number of dengue cases detected. This study aimed to assess DENV seropositivity in the Raebareli district of UP, to offer crucial insights into the region's effective control and management strategies. Materials and methods This study, after obtaining approval from the ethics committee, analyzed blood samples of individuals suspected of having dengue at a teaching hospital in rural UP between January and December 2022. To determine the disease's seroprevalence, both dengue NS1 antigen ELISA and dengue IgM Microlisa were conducted. Furthermore, RT-PCR was performed on NS1-positive samples to confirm the serotypes. The collected data were analyzed using Epi Info 7.0. Results Of the 589 suspected dengue cases, 86 (14.60%) tested positive for dengue NS1 and/or IgM. Our findings showed that males (n=330, 56.03%) and adolescents and young adults (n=301, 51.1%) from rural areas (n=523, 88.4%) were predominantly affected. Cases peaked post-monsoon, and platelet levels were notably low in NS1-positive cases. Dengue serotype 2 (DEN-2) was found in all RT-PCR-positive samples. Our results revealed a dengue seroprevalence of 14.60% (n=86), which peaked in post-monsoon months. The higher incidence among males and young adults from rural areas attending the outpatient department highlights the importance of targeted interventions and community surveillance. RT-PCR confirmed the circulation of a single serotype in the region. Conclusions This study contributes crucial insights into dengue's epidemiology and clinical profile and its findings are all the more significant now as India prepares for phase 3 trials of a quadrivalent dengue-virus vaccine in 2024. Adolescent and young adult males have an increased likelihood of acquiring the virus, and this demographic can be prioritized for vaccine trials.

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“…In the study by Birder et al, there were 284 samples, and 58 of them (20.42%) were positive for one or more dengue serological markers. The youngest patients, those aged 0 to 15, made up the lion's share of the total (48.27 percent) [16]. In the present study, the prevalence of dengue was 114 (3.8 percent), and there were 2867 positive and negative samples (96.17 percent).…”

Section: Discussionmentioning

confidence: 41%

A 4-Year Retrospective Study Of Dengue And Chikungunya In Tertiary-Care Hospital Of East Delhi

Meena,

Mohapatra,

Das

et al. 2023

Ann of Pathol and Lab Med

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Backgound Dengue is a vector-borne disease caused by the dengue virus (DENV, 1–4 serotypes), an arbovirus from flaviviridae family and chikungunya virus is an alphavirus. Material and Methods A 4 year retrospective study was conducted from January 2017 to December 2020 to determine the prevalence of the disease among in-patients and OPD patients. NS1 ELISA for invitro diagnostic kit was used to detect anti-dengue immunoglobulin G (IgG) and immunoglobulin M (IgM) antibodies from 2017-2018. Bio-Rad Dengue NS1 Ag ELISA kit was employed for 2019-2020. Results There were 5110 samples were received of which 1269 (24.8%) were laboratory-confirmed as DEN infections. The most common affected age group was 21-40 years old. In terms of gender distribution females were more affected with both dengue and chikungunya as compared to males. Results showed that 28.74% of patients were seropositive in 2017. The maximum seropositivity was observed in 2018 with 36.97% and minimum seropositivity observed in 2020 with 3.43%. Conclusion Further epidemiological studies are required to determine the true burden of these infections.

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Dengue infection: its prevalence with seasonal variations

Cited by 3 publications

References 0 publications

Dengue Infection - prevalence and seasonal variation among patients attending a tertiary care hospital at Chamarajanagar, Karnataka

Dengue Infection - prevalence and seasonal variation among patients attending a tertiary care hospital at Chamarajanagar, Karnataka

Investigating the Clinico-Demographic Characteristics of Dengue Fever and Its Seroprevalence at a Tertiary Care Hospital in Northern India

A 4-Year Retrospective Study Of Dengue And Chikungunya In Tertiary-Care Hospital Of East Delhi

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