Abstract: A topical intranasal antiviral composition for protecting against virus infections. The composition comprises an antigen binder and a pharmaceutical suspender material to allow effective delivery into the nasal cavity. Examples of materials that could be used in the pharmaceutical suspender are microcrystalline cellulose or sodium carboxymethylcellulose (Na?CMC). One particular target for the antigen binder could be SARS-CoV-2. For example, the antigen binder could target the S1 subunit of SARS-CoV-2. The composition could be made by a process in which the pharmaceutical vehicle is prepared, and then the antigen binder is added to the pharmaceutical vehicle to make a bioactive mixture, and then adding solid sodium chloride to the bioactive mixture. Also disclosed are methods of protection against virus infection using the intranasal antiviral composition.

Abstract: A system for reading optical codes, and more particularly to code reading systems with sound signal generators, modules a sound detector detects an ambient sound level in a vicinity of the system operator and the volume of the audible indicator is controlled in response to the detected ambient sound level. The sound may be produced by a transducer located in a raised rail adjacent the system operator. Various kinds of audio signals may be produced, for example, to distinguish the system's response from those of nearby optical code reading systems or to identify the kind of optical code symbology being read or its informational content.