Here's were VRA comes into play with INTERFERON
Among the promising drugs that have been tested, interferon alpha is especially interesting, the director of the National Institute of Allergies and Infectious Diseases told members of Congress a week ago. An interferon alpha nasal spray was shown to be effective during research in the 1980's against colds caused by the coronavirus, but the research was abandoned because of excessive irritation. But in the face of SARS, the side effects could become acceptable.