Figure Legends:
Figure 1: Transmission of SARS-CoV-2 from main reservoir to humans. Bats are the main reservoirs for many other coronaviruses. SARS-CoV-2 may have originated from bats and with the help of unknown intermediate hosts have contributed to human to human transmission.
Figure 2: Utility of small and large animal models of SARS-CoV-2 infection ad pathogenesis . The possible use of animal models in SARS-CoV-2 infection have been described.