Week 8 - Discussion 17070 unread replies.9494 replies.This discussion is based on the textbook reads from Microbiology Openstax. Before contributing to the discussion, review the required reading and lecture material. Chapter 15 PathogenicityChapter 16 epidemiologySelect 3 prompts below to discuss:Define the term normal flora. Discuss its role in immunity. (USLO 8.1)List and describe the following types of symbiotic relationships. (USLO 8.2)oMutualismoCommensalismoParasitismDefine virulence factors. Speculate how these factors help the organism avoid the immune system and cause disease. (USLO 8.3)Explain the pathogenicity of disease including infectivity, invasiveness, the portals of entry/exit. Be sure to include what virulence factors might contribute to each step. (USLO 8.4)Explain the periods of disease and how these might be different in acute, chronic,and latent episodes. (USLO 8.4)Compare modes of infectious disease transmission (ie. airborne, contact, etc) Provide an example of each and what are some ways you could prevent the transmission of these diseases? (USLO 8.7) Always refer back to the course syllabus, discussion forum grading rubric, before posting to the discussion. Be sure to support your postings and responses with specific references to the assigned readings and lecture material, as well as any other relevant research you find appropriate.Post your response to the questions above, making sure to include any necessary citations to appropriate readings. Make sure to provide some examples from the text and lecture material (located in the Unit folders), as well as from your own experiences.This is a post first forum. You will not see your classmate's response until you make your initial post.Read a sampling of your colleagues' postings.Respond to at least two of your colleagues' posting on two different days in one or moreof the following suggested ways:Suggest why you might see things differently.Ask a probing or clarifying question.Share an insight from having read the colleagues' posting.Offer and support an opinion.Validate an idea with your own experience.