| A | B |
|---|
| Antibody | An antigen-binding immunoglobulin, produced by B cells, that functions as the effector in an immune response. |
| Aseptic Technique | A procedure performed under sterile conditions. |
| Bacillus | A cylindrical or rod-shaped bacterium. |
| Bacteria | Single-celled microorganisms that are often aggregated into colonies or motile by means of flagella, typically live in soil, water, organic matter, or the bodies of plants and animals, are usually autotrophic, saprophytic, or parasitic in nutrition, and are noted for their biochemical effects and pathogenicity. |
| B Lymphocyte (B Cell) | A type of lymphocyte that develops in the bone marrow and later produces antibodies. |
| Coccus | A spherical bacterium. |
| Contagious | Communicable by contact. |
| Fungus | Saprophytic and parasitic spore-producing eukaryotic organisms that lack chlorophyll and include molds, rusts, mildews, smuts, mushrooms, and yeasts. |
| Gram Stain | A method for the differential staining of bacteria that involves fixing the bacterial cells to a slide and staining with crystal violet and iodine, then washing with alcohol, and counterstaining with safranin. Results in gram-positive bacteria retaining the purple dye and gram-negative organisms having it decolorized so that the red counterstain shows up. |
| Helminth | A parasitic worm (as a tapeworm, liver fluke, ascarid, or leech). |
| Immunity | A condition of being able to resist a particular disease, especially through preventing development of a pathogenic microorganism or by counteracting the effects of its products. |
| Infection | The state produced by the establishment of an infective agent in or on a suitable host. |
| Microbiology | A branch of biology dealing especially with microscopic forms of life (as bacteria, protozoans, viruses, and fungi). |
| Phagocyte | A cell (as a white blood cell) that engulfs and consumes foreign material (as microorganisms) and debris. |
| Prion | Any of various infectious proteins that are abnormal forms of normal cellular proteins, that proliferate by inducing the normal protein to convert to the abnormal form, and that in mammals include pathogenic forms. |
| Protozoan | Any protist of the phylum or subkingdom Protozoa. |
| Spirillum | A spiral-shaped bacterium. |
| T Lymphocyte (T Cells) | A type of lymphocyte responsible for cell-mediated immunity that differentiates under the influence of the thymus. |
| Transmission | The way a microbial organism moves from one host to another. |
| Virus | Any of a large group of submicroscopic infective agents that typically contain a protein coat surrounding an RNA or DNA core of genetic material but no semipermeable membrane, that are capable of growth and multiplication only in living cells, and that cause various important diseases in humans, animals, or plants. |
