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.
Fungi are parasites that do significant damage to plants and particularly cultivated plants. Roughly 80 percent of all plant diseases come from fungi. Fungal spores are spread by agents such as water and wind to other plants. They develop in humid conditions and are often microscopic, growing on both living and dead plant tissues. Fungal diseases can be seen at any time of year, but mostly occur during fruiting.