Travellers from Dubai and Britain played a crucial role in spreading Covid-19 in the early phase and were the primary sources of the importations of the disease into India, said a study by the researchers at Indian Institute of Technology, Mandi (IIT-Mandi).

In this study, the research team used the travel history of infected patients from January 30 to April 6 as the primary data source and a social network was created depicting the spread in the early phase of the pandemic.