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Updated: Jul 5, 2026

Protocol for Dengue Infections in Mosquitoes (A. aegypti) and Infection Phenotype Determination
Published on: July 4, 2007
Descriptive epidemiology of dengue transmission in Uttar Pradesh
Piyush Tripathi1, Rashmi Kumar, Sanjeev Tripathi
1Department of Pediatrics, King Georges Medical University, Lucknow, Uttar Pradesh, India.
Insights
Dengue infection surveillance in Lucknow revealed a 20.9% positivity rate in children with febrile illnesses. Dengue transmission occurs year-round, peaking post-monsoon, affecting both rural and urban areas equally.
Area of Science:
- Epidemiology
- Infectious Diseases
- Public Health
Background:
- Dengue infection poses a significant public health challenge, particularly in tropical and subtropical regions.
- Understanding the epidemiological patterns of dengue is crucial for effective control strategies.
Purpose of the Study:
- To investigate the epidemiology of dengue infection in Lucknow, India, over a three-year period.
- To determine the prevalence and transmission patterns of dengue in pediatric populations.
Main Methods:
- Hospital-based surveillance was conducted from 2003 to 2006.
- Children presenting with acute febrile encephalopathy (AFE) and acute undifferentiated febrile illness (AUFI) were enrolled.
- Dengue-specific IgM antibodies were detected using ELISA in acute serum samples.
Main Results:
- A total of 118 out of 563 (20.9%) patients tested positive for dengue antibodies.
- Dengue transmission was observed throughout the year, with a peak during the post-monsoon season.
- The infection affected rural and urban areas equally, with no specific high-prevalence zones identified.
Conclusions:
- Dengue is endemic in the Lucknow region, with consistent year-round transmission and a post-monsoon peak.
- Both rural and urban populations are equally susceptible, highlighting the widespread nature of dengue transmission.
- The findings underscore the need for sustained dengue surveillance and integrated vector management strategies in the region.
Abstract:
We report epidemiology of dengue infection as revealed through a hospital based surveillance for dengue infection over a 3 year period in Lucknow, U.P., India. In 2003-2005, children with acute febrile encephalopathy (AFE) and in 2005-2006, children with acute undifferentiated febrile illness (AUFI) were enrolled. IgM antibodies to dengue were tested by ELISA in acute serum. A total of 118/563 (20.9%) patients tested positive for dengue antibodies. Dengue transmission occurred round the year in the Lucknow region with peak in postmonsoon season and occurred equally in rural and urban areas. All the surrounding districts were affected, with no distinct high prevalence areas.
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