Seasonal trend of Dengue cases admitted in a tertiary Hospital: A record based study
Abstract
Dengue virus infection has emerged as a notable public health problem in recent decades in spite of having a national programme to control it. This study was conducted on records of dengue cases admitted in department of Medicine, SMS Hospital Jaipur (Rajasthan) in year 2018. Seasonal variation was observed in these cases. Maximum (75.4%) of these cases admitted in September to November with peak in October. Few cases admitted in and around that period, so it can be concluded with this study that Dengue cases spurge in post-monsoon period. Occurrence of most of the cases in post-monsoon period indicates a need for acceleration of vector control programme prior to monsoon.
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Introduction
Dengue Dengue is a vector-borne disease that is a major public health problem. It is caused by the dengue virus (DENV, 1–4 serotypes), which is one of the most important arboviruses in tropical and subtropical regions.1,2 The epidemiology of dengue in India was first reported in Madras (now Chennai) in 1780, and the first outbreak occurred in Calcutta (now Kolkata) in 1963; subsequent outbreaks have been reported in different parts of India.3,4
In the early 2000s, dengue was endemic in a few southern (Maharashtra, Karnataka, Tamil Nadu and Pondicherry) and northern states (Delhi, Rajasthan, Haryana, Punjab and Chandigarh). It has recently spread to many states, including the union territories. Both Aedes aegyptiand Aedes albopictus are the main competent vectors for dengue virus in India.5 The number of dengue cases has increased 30-fold globally over the past five decades. 6
A Global strategy for dengue prevention and control (2012- 2020) has been devised by WHO with an aim to reduce the mortality from dengue by at least 50% by 2020.7 India has launched National Vector Borne Disease Control Programme (NVBDCP) in year 2003 to control vector born diseases including dengue. Despite of this control programme, dengue cases are on increase in Rajasthan also.
So this study was designed to find out seasonal trend of Dengue cases admitted in Medicine department of SMS Medical College Jaipur (Rajasthan) India.
Conclusion
This present study concluded that maximum (75.4%) of these cases admitted in September to November with peak in October. Few cases admitted in and around that period, so it can be concluded with this study that Dengue cases spurge in post-monsoon period. Occurrence of most of the cases in postmonsoon period indicates a need for acceleration of vector control programme prior to monsoon.