Abstract The spike protein (S) of SARS-CoV-2 induces neutralizing antibodies and is the key component of current COVID-19 vaccines. The most efficacious COVID-19 vaccines are genetically-encoded spikes with a double proline substitution in the hinge region to stabilize S in the prefusion conformation (S-2P). A subunit vaccine can be a valuable addition to mRNA and viral vector-based v... https://www.diegojavierfares.com/special-offer-Rothbury-Chrome-two-handle-low-arc-bathroom-faucet-p13193-best-find/