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.
Furthermore, fungi are also important as parasites and pathogens, which cause diseases to both animals and plants. For example, in humans, fungi cause diseases such as ringworm, athleteâs foot etc. while, in plants, they cause rusts, smuts, stem rot etc. Fungi belong to a single Kingdom called Fungi, whereas parasites belong to several Kingdoms including Bacteria, Protozoa, Fungi and Animalia. â¢ All the parasites cause injuries or diseases to their hosts, whereas only few fungi species cause diseases to human and plants.