10-2. Infectious diseases are caused by diverse living agents that replicate in their hosts. The agents that cause disease fall into five groups: viruses, bacteria, fungi, protozoa, and helminths (worms). Protozoa and worms are usually grouped together as parasites, and are the subject of the discipline of parasitology, whereas viruses, bacteria, and fungi are the subject of microbiology.
Infectious agents come in many shapes and sizes. Bacteria and protozoans are microscopic one-celled organisms, while viruses are even smaller. Fungi grow like plants, and helminths resemble worms.
Biotic agents include life-forms that range in size from the smallest virus, measuring approximately 20 nanometres (0.000 000 8 inch) in diameter, to tapeworms ...
Idea for Use in the Classroom. Explore the Infectious Agents infographic with students to help them identify and discover how infectious agents invade the body and the types of treatments and preventions available for the illnesses they cause. Allow students to collaborate or work independently. Have students make a KWL chart.Ask them to record what they already know …
The four different categories of infectious agents are bacteria, viruses, fungi, and parasites. When studying these agents, researchers isolate them using ...
Jun 11, 2020 · Ask students to focus on using the infographic to discover the different ways that infectious agents invade human bodies. Have them find and record specific examples of pathogens that enter the human body through air, water, food, and blood in the “L” chart section, citing specific evidence from the infographic.
17.05.2016 · Some examples of bacterial infections are strep throat, tuberculosis, E. coli, anthrax, salmonella, syphilis, and bubonic plague. Virus Another type of …
27.06.2021 · Infectious agents can grow in various body compartments, as shown schematically in Fig. 10.4. We have already seen that two major compartments can be defined—intracellular and extracellular. Intracellular pathogens must invade host cells in order to replicate, and so must either be prevented from entering cells or be detected and eliminated once
14.11.2021 · Infectious Agent Example This includes bacteria, viruses, fungi, and parasites (protozoa and helminths). Organisms that belong to these four groups have different shapes, cell structures, and...
Prions; Viruses; Bacteria; Fungi; Protozoa; Helminths. Each of these is described in more detail below. Some infectious agents are organisms, which ...
Infectious agents come in many shapes and sizes. Bacteria and protozoans are microscopic one-celled organisms, while viruses are even smaller. Fungi grow like plants, and helminths resemble worms. Share Tweet Advertisement Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
10-2. Infectious diseases are caused by diverse living agents that replicate in their hosts ... The agents that cause disease fall into five groups: viruses, ...