Intro to Infectious Diseases Flashcards Preview

Week 6: Pneumonia and Cough > Intro to Infectious Diseases > Flashcards

Flashcards in Intro to Infectious Diseases Deck (14):
1

5 benefits of the microbiome

Digest food
Make essential vitamins
Host defense
Prevent colonization
Metabolic function

2

3 main anaerobic bacteria in the microbiome

Fusobacterium
Bacteroides
Prevotella

3

Are most bacteria in the microbiome anaerobic or aerobic?

Anaerobic
99% of all cultureable bacteria

4

1 disease causing bacteria that live in:
1. Mouth
2. Upper GI
3. Genitourinary

1. Viridans streptococci
2. Helicobacter pylori
3. Lactobacilli (vagina)

5

2 disease causing bacteria in the lower GI tract

Bacteroides
E. coli

6

2 disease causing bacteria on the skin

Staph aureus
Staph epidermidis

7

4 disease causing bacteria in the naso/oropharynx

Haemophilus
Moraxella
Pneumococcus
Mycoplasma

8

4 barriers to infection in the skin

Microbial (microbiome)
Chemical (lysozyme and sweat)
Physical (epidermis)
Immunological (immune system)

9

3 functions of mucus

Traps bacteria, viruses and foreign material
Has antimicrobial properties (lysozyme, IgA)
Lubricates and protects

10

What is the main bacteria you'll get infected with if you have a deficiency in
1. B cells
2. Phagocytes
3. Complement

1. Pneumococcus
2. Staphylococcus
3. Neisseria

11

5 ways for microbes to evade the immune system

Intracellular invasion
Capsule
Antigenic variation
Immune modulation
Immune privileged sites

12

6 signs and symptoms of infection

Fever (>38 degC)
Chills, rigor, sweats
Signs of inflammation (pain, redness, swelling, pus)
Lymphadenopathy
Weight loss, fatigue, poor energy, appetite
Typical skin changes or rash

13

3 main things that cause fever

Infection
Malignancy
Autoimmune

14

3 main things that caused the increase in life expectancy

Improved hygiene
Vaccines
Antibiotics