Synairgen plc discovers and develops drugs for respiratory diseases. It develops SNG001, an inhaled interferon beta for the treatment of severe viral lung infections that is in pre- clinical trial; and inhaled interferon beta IFN-ß, a naturally occurring protein that helps regulate the immune system to fight viruses, including coronaviruses. Synairgen plc was incorporated in 2004 and is headquartered in Southampton, the United Kingdom.