https://www.siliconvalley.com/2021/02/25/how-the-new-one-dose-covid-19-vaccine-compares-to-pfizer-and-moderna/ > A COVID-19 vaccine produced by Johnson & Johnson — the company best known for producing band aids — is safe and effective, according to a Food and Drug Administration review released Wednesday, paving the way for a third U.S. vaccine. > If approved after a Friday review by the FDA’s Vaccines and Related Biological Products Advisory Committee, the vaccine could be authorized as soon as Saturday. The company plans to begin shipping immediately.