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Differentiate between normal microbiota and transient bacteria found on skin. Which type is more difficult to remove? Explain.
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- Which of the following is true of commensal bacterium? Question 2 options: A) commensal bacteria do not receive any benefit from its host B) commensal bacteria only colonize adult hosts C) commensal bacterium may also be an opportunistic pathogen D) commensal bacterium cannot cause an infection its hostNonhealing wounds on the surface of the body are often extremely difficult to manage, in part because the microbial cause of the lack of healing is often extremely difficult to identify. Create a list of 4 reasons this might be the case.Explain how the body (including cells, organs, organ systems) is affected by the bacterium called Neisseria meningitidis? Are there any long-term effects caused by the bacterium, even after recovery?
- Which of the types of sputum would you most likely suspect to see in a ptient with lung cancer? A) Hemoptysis B) Pink and frothy C) Thick and green or brown D) Thin and yellow or pale grayWhy is the skin not always a favorable microenvironment for colonization by bacteria?Normal microbiota provide protection from infection in each of the following ways EXCEPT: Question 3 options: A) they produce antibacterial chemicals. B) they compete with pathogens for nutrients. C) they make the chemical environment unsuitable for nonresident bacteria. D) they produce lysozyme.
- What is the role of the following types of cells in wound healing. I) labile cells II) stable cells II) permanent cellsDirect contact with pathogenic microorganisms is the most common cause of hospital-acquired infection. How might a dermal (skin) Staphylococcus infection of a staff member result in a urinary traction infection of a patient? Describe possible pathways of contamination during a normal workday.List and explain at least 3 Bacterial infections of the skin.
- A five-year old boy, suffering from running nose, headache and fever, got severe pain in his right ear. What is the diagnosis? Name at least two bacteria commonly involved in such infections. If left untreated, what complications might happen?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 normal and beneficial but also be pathogenic?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?