Abstract: The present invention relates to a composition comprising one or more of clove oil, eucalyptus oil, basil oil, ginger oil, an extract or component of any of these, or a combination thereof, and to a buffer composition having a pH of from 6.7 to 7.9 at a temperature of 37° C., both for use in the treatment, prophylactic treatment or amelioration of an airborne viral infection, or for use in reducing viral replication in a subject infected with an airborne virus or exposed to an airborne virus capable of causing an airborne viral infection in the subject. The present invention also relates to an aqueous composition either comprising a buffer and an essential oil with antiviral, antibacterial or antifungal activity; or comprising a buffer, hydrogen carbonate ions, and zinc ions; or comprising a buffer, hydrogen carbonate ions, and transferrin and/or iron ions. The present invention also relates to methods of preparing the compositions, and to concentrates of the compositions.

Abstract: The present invention relates to a buffer composition having a pH of from 6.7 to 7.9 at a temperature of 37° C., for use in the treatment, prophylactic treatment or amelioration of an airborne viral infection, or for use in reducing viral replication in a subject infected with an airborne virus or exposed to an airborne virus capable of causing an airborne viral infection in the subject. The buffer composition may comprise an N- substituted aminosulphonic acid. The present invention also relates to a method of preparing the buffer composition, and to a concentrate of the buffer composition. The buffer composition can be used in a method of treatment, prophylactic treatment or amelioration of an airborne viral infection in a subject, and a method of reducing viral replication in a subject infected with an airborne virus or exposed to an airborne virus capable of causing an airborne viral infection in the subject.