In February 2020 , Chinese researchers found that there is only one amino acid difference in certain genome sequences between the viruses found in pangolins and those from humans , however , whole genome comparison to date found at most 92 % of genetic material shared between pangolin coronavirus and SARS-CoV-2 , which is insufficient to prove pangolins to be the intermediate host.
Pangolins were implied to be an intermediate host of COVID-19 .