Most virulent bacteria that can also penetrate the central nervous system and grow in the cerebral spinal fluid have Ability to colonize the upper respiratory tract Mechanisms for growth or survival in the blood A protective virulence capsule Ability to avoid phagocytosis All of the above
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- The man pictured in Figure 4.17 wears skin ornaments applied by piercing. Among other functions, the skin is a barrier to potentially dangerous bacteria, and some people object to extensive body piercing on the grounds that it opens the door to infections. Explain why you do or dont agree with this objection. Figure 4.17 This young man has chosen to undergo multiple body piercings.A strain of Shigellahas a mutation causing it to lose the ability to produce fimbriae and become less virulent as a consequence. What function has this pathogen lost? Group of answer choices the ability to move from one location in the body to another the ability to produce an endotoxin the ability to adhere to cells of the body the ability to establish a latent infection the ability to prevent phagocytes killing it do not copy from cheggThe skin and bodily secretions provide the first line of defense against infection. One response in this category that is common during upper respiratory virus infections is: Production of antibodies Infiltration by white blood cells Mucus production Increased saliva production Fever
- Staphylococcus aureus has five types of toxins that help out with its virulence. They are enterotoxin, exofoliative toxin, toxic shock syndrome toxin, leukocidin and hemolysins. Please choose 3. Explain the damage they specifically can cause and how this is beneficial to the bacteria.Feces, gastric secretions, and urine are not considered infectious unless there is contact with a large volume. there is splash contact at multiple sites. they are visibly contaminated with blood. there is an exposure to a mucous membrane.what is a reasonable treatment for an E coli infection? interferon antibiotics quinines antiviral drugs antibodies
- Epstein-Barr virus has been implicated in all of the following EXCEPT Group of answer choices: gastritis. infectious mononucleosis. Burkitt's lymphoma. oral hair leukoplakia. Hodgkin's lymphoma.A 77 year old man was brought to the emergency ward with fever and chills. He has had several UTI’s in the past and thinks that his symptoms are indicative of another of such infections. He has a history of type 2 DM with diabetic nephropathy and chronic kidney disease. Physical examinations revealed that he was ill-appearing and had right flank tenderness. How will the medical laboratory impact this patient’s?careWhich of the following contribute to a pathogen's invasiveness? endotoxins hyaluronidase F protein
- Propionibacterium acnes is a normal member of the skin microbiome that benefits the body by lowering the skin's pH- an antimicrobial effect. However, P. acnes is also the leading cause of acne. Explain mechanistically how can a bacterium be part of the normal microbiome and beneficial but also be pathogenic?The steps of infection is broken down into 6 steps place them in the orderWhich of the following is NOT true of bacterial endotoxin? 1. None of the other four answers (All are true of bacterial endotoxin) 2. Can cause life-threatening drop in blood pressure (shock) 3. Composed of proteins produced by bacteria and released into surrounding environment 4. Composed of lipid A, a component of the gram-negative bacterial outer membrane 5. Stimulates macrophages to produce a substance (TNF) that damages capillaries