Ahmedabad: The World Health Organization (WHO) on Friday suggested that the Ahmedabad Municipal Corporation (AMC) create an "army of contact tracers" to identify people who have come in contact with COVID-19 patients and contain the viral spread.In a virtual meeting with senior AMC officials, chief scientist of the WHO Dr Soumya Swaminathan stressed on the need to create a big army of contact tracers consisting of students and graduates, and training them as it had been done in United Kingdom and Germany.According to a release issued here, the briefing, which revolved around showcasing "Ahmedabad Model" of fighting coronavirus, was attended by Ahmedabad municipal commissioner Mukesh Kumar and officer on special duty Rajiv Kumar Gupta.Dr.