Abstract: A compound that includes a dextran backbone having at least one C-type lectin targeting moieties attached thereto. Also disclosed are embodiments of the compound that include at least one therapeutic agent and/or at least one detection label attached to the dextran backbone. The compound may be effective for treatment of Corona Covid-19 (SARS-covid-2) virus, its variants and other related viral diseases, and disorders. Further disclosed are methods for diagnosing and treating diseases and/or disorders directly using the disclosed compounds.