Epidemiology of COVID-19 and effect of public health interventions, Chennai, India, March–October 2020: an analysis of COVID-19 surveillance system oleh Prabhdeep Kaur, Parasuraman Ganeshkumar, Mohankumar Raju, Polani Rubeshkumar, Manikandanesan Sakthivel, Kumaravel Ilangovan, Madhusudhan Reddy, Jagadeesan M, Hemalatha Masanam Sriramulu, Lakshmidevi Murugesan, Raajkumar Ganapathi, Mahalakshmi Srinivasan, Aswini Sukumar, Divyadharshini Shanmugam, Prakash Govindasamy, Manoj Murhekar