A multivalent or polyvalent vaccine is designed to immunize against two or more strains of the same microorganism, or against two or more microorganisms.
The interactions of clustered proteins for multivalent ligands are described by avidities (avidity), while matricity describes a semisolid state interaction of a matrix with its environment.
As the droplet size increases, the molecular interactions at the interface of the droplet phase and the continuous phase become stronger through multivalent interactions.
