âif you have HIV and one or more of these OIs, you will be diagnosed with AIDS, no matter what your CD4 count happens to be: 1  of bronchi, trachea, esophagus, or lungs. , 2  chronic intestinal (greater than 1 month's duration). 3  disease (particularly CMV retinitis). , 4  HIV-related.
Organisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants.Not included are ectoparasites like insects, mites, vertebrate, or other pests that affect plant health by consumption of plant tissues.rganisms that cause infectious disease include fungi, oomycetes, bacteria, viruses, viroids, virus-like organisms, phytoplasmas, protozoa, nematodes and parasitic plants.
Another important section of the disease spectrum caused by fungi is the mycotoxicoses, e.g. facial eczema, ryegrass staggers, mushroom poisoningâ amanita, ramaria, clavaria, cortinarius, clitocybe, inocybe, psilocybe, sclerodermia. dimorphic fungus.ungus. pl. fungi [L.] a general term for a group of eukaryotic organisms (mushrooms, yeasts, molds, etc.) marked by the absence of chlorophyll, the presence of a rigid cell wall in some stage of the life cycle, and reproduction by means of spores.