Exam (elaborations)
VBS EXAM III (G) | 191 QUESTIONS | WITH COMPLETE SOLUTIONS!!
- Course
- Institution
VBS EXAM III (G) | 191 QUESTIONS | WITH COMPLETE SOLUTIONS!!
[Show more]
Content preview
VBS EXAM III (G) | 191QUESTIONS | WITH
COMPLETE
SOLUTIONS!!
VBS
Evatee 10/24/24 VBS
,VBS EXAM III (G) | 191 QUESTIONS | WITH
COMPLETE SOLUTIONS!!
Contagious Diseases Answer - cold, flu, strep throat
Non-Contagious Diseases Answer - lyme, malaria
dysbiosis Answer - microbial imbalance
Why isn't Lyme disease contagious? Answer - You cannot spread Lyme disease
from person to person, you need a tick to spread it.
Exposure to a pathogen does not always result in disease. Why not? Answer - -
No portal of entry
- Physical and chemical barriers
- Protection by normal microbiota
- Host receptor not present
- Innate immunity
- Acquired immunity
three factor that determine if a microbe is beneficial, neutral, or detrimental
Answer - infectious dose, microbe virulence and host immunity
Symptoms Answer - subjective, can't measure (headache, chills, aches, sore
throat)
, Signs Answer - Objective, measurable (BP, temperature, HR, cough)
How can a primary infection lead to a secondary infection? Answer - A primary
infection can leave your immune system weakened and more susceptible to
secondary infection.
Secondary infections often comes from bacteria that you already carry
opportunistic pathogens Answer - disease in immunocompromised individuals
- Can also cause disease in healthy individuals if introduced into the wrong
location (e.g. wound)
What are some ways that our normal microbiota protect us from disease?
Answer - Stimulates the adaptive immune response and plays a role in
developing oral tolerance
How does Mycobacterium tuberculosis evade the immune system? Answer - -
Facultative intracellular pathogen
- Produces proteins that direct their uptake by pathogens
- Has an acid-fast cell wall that resists digestion
Bacteria can multiply within human macrophage cells
How do some bacteria evade the complement system? Answer - Antigenic
variation Eg. HIV, Influenza
• Capsule or slime layer
• Facultative intracellular pathogen
• Leukocidins destroy white blood cells
• IgA proteases destroy some antibodies (IgA)
• Elastase inactivates complement proteins
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller EvaTee. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $22.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
66579 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now