lifeStageStage: "A particular step, phase, or position in a developmental process." - The American Heritage Stedman's Medical Dictionary. Categorizes the life-cycle-stage of the organism observed in a sample. Possible values include: Adults, Cysts, Eggs, Filariform Larvae, Gametes, Larvae, Microfilaria, Rhabditiform Larvae, Schizonts, Trophozoites. This property is used primarily for parasites. Parasite: "An organism that grows, feeds, and is sheltered on or in a different organism while contributing nothing to the survival of its host." - The American Heritage Stedman's Medical Dictionary.
organismTaxonA categorization of the organism identified, i.e., the “type� of organism. Note that this property is intended to include not only specific species of organisms (e.g., Staphylococcus aureus, SNOMED-CT code 3092008), but also more general classifications that might be found in laboratory results, such as Gram-positive Cocci (SNOMED-CT code 59206002). Note also that since this property is a coded element, it contains both a code and a display name.
strainA more precise subdivision of the value in the organism taxon, for example, the H1N1 form of Influenza. Because of the multitude of strains and the speed at which they are discovered, the organism taxon coding system may not provide such values. This property is therefore modeled as a string, rather than a code, as one might otherwise expect."Contains the specific strain of animal. It can also be expanded to include strain of any living organism and is not restricted to animals." - HL7 Version 2.8, PID-37."The body of descendants of a common ancestor, as a family or stock. A variety, especially of microorganisms." - Dictionary.com