Changing Dengue Epidemiology in Delhi, India
Author Information
Author(s): Ekta Gupta, Lalit Dar, Geetanjali Kapoor, Shobha Broor
Primary Institution: All India Institute of Medical Sciences
Hypothesis
The study aims to compare the serological and virological profiles of confirmed dengue cases in the years 2003, 2004, and 2005.
Conclusion
Dengue infections are now endemic in Delhi, with dengue serotype 3 emerging as the predominant strain.
Supporting Evidence
- 811 out of 1820 serum samples were confirmed as dengue infections.
- Dengue serotype 3 was predominant in 2005, replacing serotypes 2 and 4.
- The peak incidence of dengue cases occurred in the second and third week of October.
Takeaway
Dengue is getting more common in Delhi, and now the type 3 virus is the most common one found.
Methodology
The study tested 1820 serum samples for dengue IgM antibodies and performed virus isolation and RT-PCR for serotype identification.
Potential Biases
Potential bias in sample collection as it was limited to a single hospital.
Limitations
The study only covers three years and may not represent long-term trends.
Participant Demographics
The majority of confirmed cases were in the age group 21–30 years, with a male to female ratio of approximately 2:1.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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