Parasite: Any organism which in its natural habitat feeds and
lives on or in a different organism. Plasma: The clear fluid of
blood and lymph in which cells are suspended; it also contains
dissolved proteins. Plasma Membrane: a delicate structure which
encloses the cell, separating the contents of the cell from the
surrounding environment. Plasmids: Any extrachromosomal
replicating unit or hereditary determinant, also called
paragene. Polio: A highly contagious infectious disease caused
by a filterable virus and occurring most commonly in children ;
in its acute form it involves the spinal cord causing paralysis.
Protease: Any enzyme which acts upon the peptide bonds of
proteins and peptides; a protein-splitting or hydrolyzing
enzyme. Prevalence: The number of people with a specific
condition in a given population. Protein: Proteins are nitrogen-
rich compounds that are formed from complex series of amino
acids. They are fundamental to many of the processes of life,
and are the fundamental building blocks for