How GIS can help to Delhi to control Dengue Panic
GIS and remote sensing technology is now finding application in diverse fields . In recent years, the utilization of Geographic Information System (GIS) as a tool to manage diseases by public health organizations has become a necessity in line with the advancement of technology. Delhi, the capital of India, is situated on the bank of river Yamuna at the longitude between 76050’11”E and 77020’54” E and latitude between28025’47” N and 28053’5” N. It occupies a 1,485 Km2 area of which 900 Km2 is classified as urban. Dengue is one of the biggest threat to the people resides in Delhi. Of the 9,271 dengue cases, 4,726 patients were from Delhi, while 4,545 had come to the city from other states for treatment, according to the SDMC’s last report. In this present scenario, it is very much essential to apply for GIS-based surveillance tool for dengue epidemic control in Delhi and whole India as well.
Age-wise distribution of dengue-positive patients in Delhi
Source: India Journal of Community Medicine
GIS technology can be useful in following ways :
Source : http://www.isprs.org/proceedings/XXXVII/congress/8_pdf/2_WG-VIII-2/03.pdf
- GIS-based systematic household grid sampling survey for assessing dengue breeding habitats and action for source reduction. Field technicians can use GPS coordinates to collect data.
- Tracking the Spread of Infectious Disease. Using GIS can provide a clear idea of what is happening in the mosquito populations in any given area. Dengue testing can be inputted for each trap and mapped on an ongoing basis.
- Land use land cover map is buffered to predict the risk level map of the dengue incidence on the basis of lifespan, flying distance, solid waste collection points and highly populated area as a breeding place of the dengue incidence.
- Mapping of Geo environmental variables (Temperature, Humidity, Relative humidity and rainfall etc) and dengue vector breeding habitats.
- Mapping all the dengue diagnostic and virus isolation infrastructures or treatment facilities hospitals/Centres of the state.
- The web mapping GIS application could be used for updating the real-time periodical information relevant to the dengue cases, breeding sources, and the vector density. The spatial analysis could be used for delineating the areas under vulnerable for dengue transmission and the areas could be marked for preventing from dengue epidemics well in advance.