claim: protein structure and sequence reanalysis of 2019-ncov genome refutes bats as its intermediate host and the unique similarity between its spike protein insertions and hiv-1.
evidence_1: addnl., our findings suggest that 2019-ncov has most similar genetic information with bat coronavirus and most similar codon usage bias with snake.", "in this communication, we first analyzed two recent studies that concluded that snakes are the intermediate hosts of 2019-ncov and that the 2019-ncov spike protein insertions share a unique similarity to hiv-1.")