The Precision Pandemic Health Surveillance (PPHS) system is Asia’s first city-wide mixed source wastewater surveillance for SARS-CoV-2. In Bangalore, the system has been conducting systematic and regular testing of wastewater since April 2021. A total of 45 open canals and 28 sewershed sites are covered at intervals of one - two times a week. This covers almost 70% of the total population of Bangalore. On June 21, 2021, the platform also introduced genome sequencing to determine the prevalent and dominant strains. This effort is possible through strong inter-agency collaboration between BBMP, BWSSB, KUWSDB, Pollution Control board, DoHFW and partners.
Wastewater surveillance is increasingly used to track COVID-19 infections and the spread of new variants. Linda Geddes speaks to Dr Angela Chaudhuri about the Bangalore-based initiative she helped establish, which she hopes could provide a blueprint for systematic disease surveillance in resource-constrained environments.
For more information about the platform, please contact Anna Poorni at [email protected] and or reach out to us on Twitter
This initiative is possible with the urgent attention and kind contribution of the SKOLL Foundation.
This initiative is piloted, incubated, and promoted by Swasti and Catalyst Management Services as part of the #COVIDActionCollab supported by Skoll Foundation.