Incrimination of Aedes aegypti for dengue virus serotype-1 in Assam, Northeast India

Dutta, Prafulla; Khan, Siraj Ahmed; Chetry, Sumi; Abdul, Mehtap Haktanir

doi:10.4103/0972-9062.256572

Cited by 5 publications

(4 citation statements)

References 2 publications

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“…Incidence of Dengue in Assam has been documented in many studies. [2][3][4][14][15][16][17][18] In our study we have seen that the Kamrup (Metro) district has reported the highest number of cases in all the years. An interesting finding of this study is the occurrence of Dengue in districts that were unaffected in previous years (Table 3) which can be attributed to increase in long-distance travel, population growth and urbanisation, lack of sanitation, ineffective mosquito control etc.…”

Section: Discussionmentioning

confidence: 96%

“…2 In northeast India, particularly Guwahati, Assam has been experiencing dengue every year with high morbidity since its first outbreak in 2010. 3 Guwahati is the largest and fastgrowing metropolis and gateway of northeast India. Over the past decade, there has been an increase in urbanization, deforestation, massive developmental activities, rapid population movement and increased air connectivity between Guwahati and other metropolitan cities resulting in increased receptivity for mosquito breeding and possible importation and spread of dengue virus through the human host in the region.…”

Section: Introductionmentioning

confidence: 99%

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Seroprevalence of dengue cases in a tertiary care hospital

Dina¹,

Sarma²,

Parasmita³

et al. 2019

International Journal of Health Research and Medico Legal Practice

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Background: Dengue is a mosquito borne viral disease of global public health concern and is a major cause of morbidity in most of the endemic regions of the world. In northeast India, particularly Guwahati, Assam has been experiencing dengue every year with high morbidity since its first outbreak in 2010 and therefore emerging as major public health concern in northeast India and spreading with increased morbidity. Objective: To analyse the seroprevalence and epidemiological trend of dengue among patients presenting in Gauhati Medical College and Hospital from the year 2012 to 2017. Materials and methods: A retrospective study was done from the year 2012 to 2017 in blood samples received in the department of Microbiology, Gauhati Medical College & Hospital. Dengue NS1 antigen and Dengue IgM antibody ELISA tests were performed for the confirmation of dengue cases which was performed as per the manufacturer's guidelines. We estimated the incidence by applying age and sex distribution of Dengue cases in Assam. Results: From the six years study we found that the prevalence of Dengue was highest in 2012 (47%) and lowest in 2014 (10%). Highest sample load was seen in 2016. In all the years, males patients were more than the female patients. Commonest age-group of the affected patients was between 25-34 years of age. In Assam, Kamrup (Metro) district followed by Kamrup (Rural) showed highest case load in all the years. Conclusion: Dengue has remained a persistent problem in Assam with the increasing distribution range of Aedes aegypti. There is a need of identification of high-risk areas, vector incrimination and seasonal infectivity of dengue so that future outbreaks can be avoided by targeted

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Section: Discussionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Seroprevalence of dengue cases in a tertiary care hospital

Dina¹,

Sarma²,

Parasmita³

et al. 2019

International Journal of Health Research and Medico Legal Practice

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“…As Dengue and Chikungunya infections were found in the areas with dense forest cover ( Figure 4 a), without any travel history of the inhabitants, the possibility of new Aedes vectors transmitting these diseases and the involvement of different virus strains remains. In earlier NE India studies, DengueV-1 genotype-III and Asian-I of DengueV-2 were reported [ 13 , 22 ]. Reports of sylvatic Dengue [ 32 ] from some south-east Asian, African and Latin American countries [ 33 , 34 , 35 ] makes it worthwhile to initiate comprehensive vector and virus studies.…”

Section: Discussionmentioning

confidence: 99%

“…Previous studies in Asia have identified the causes of several NMF illnesses [ 10 , 11 , 12 ], including some from India [ 2 , 4 , 8 , 9 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ], but few from NE India [ 21 , 22 , 23 ], with none specifically from malaria-endemic regions. These studies in India are either conducted after outbreaks or are hospital-based [ 2 , 18 , 21 , 22 , 24 ], and still do not represent community-level disease burden.…”

Section: Introductionmentioning

confidence: 99%

Diagnosis of Indigenous Non-Malarial Vector-Borne Infections from Malaria Negative Samples from Community and Rural Hospital Surveillance in Dhalai District, Tripura, North-East India

et al. 2022

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The aetiology of non-malaria vector-borne diseases in malaria-endemic, forested, rural, and tribal-dominated areas of Dhalai, Tripura, in north-east India, was studied for the first time in the samples collected from malaria Rapid Diagnostic Kit negative febrile patients by door-to-door visits in the villages and primary health centres. Two hundred and sixty serum samples were tested for the Dengue NS1 antigen and the IgM antibodies of Dengue, Chikungunya, Scrub Typhus (ST), and Japanese Encephalitis (JE) during April 2019–March 2020. Fifteen Dengue, six JE, twelve Chikungunya, nine ST and three Leptospirosis, and mixed infections of three JE + Chikungunya, four Dengue + Chikungunya, three Dengue + JE + Chikungunya, one Dengue + Chikungunya + ST, and one Dengue + ST were found positive by IgM ELISA tests, and four for the Dengue NS1 antigen, all without any travel history. True prevalence values estimated for infections detected by Dengue IgM were 0.134 (95% CI: 0.08–0.2), Chikungunya were 0.084 (95% CI: 0.05–0.13), Scrub were 0.043 (95% CI: 0.01–0.09), and Japanese Encephalitis were 0.045 (95% CI: 0.02–0.09). Dengue and Chikungunya were associated significantly more with a younger age. There was a lack of a defined set of symptoms for any of the Dengue, Chikungunya, JE or ST infections, as indicated by the k-modes cluster analysis. Interestingly, most of these symptoms have an overlapping set with malaria; thereby, it becomes imperative that malaria and these non-malaria vector-borne disease diagnoses are made in a coordinated manner. Findings from this study call for advances in routine diagnostic procedures and the development of a protocol that can accommodate, currently, in practicing the rapid diagnosis of malaria and other vector-borne diseases, which is doable even in the resource-poor settings of rural hospitals and during community fever surveillance.

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