Nanofitins, which are derived from a protein found in Sulfolobus acidocaldarius—an archaeal microorganism found in hot springs—successfully neutralized SARS-CoV-2 in mice and were well-tolerated. When inhaled by the rodents, the engineered nanofitins, which inhibit the virus by binding to its spike proteins, were observed to quickly reach the lungs in high doses both preventing and clearing early infections, researchers from biotech company Affilogic report Aug. 30 in the journal Molecular Therapy.
