Week 2.4 Infectious Disease Agents and Classifications Flashcards Preview

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Flashcards in Week 2.4 Infectious Disease Agents and Classifications Deck (48)
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1

infectious disease aka

communicable disease

2

what is the definition of an infectious disease

lines caused by a specific infectious agent or its toxic product that results from transmission of the age from an infected person, animal reservoir, to a host, either directly or indirectly through an intermediate plant or animal host, or an inanimate object,

3

what are some things that affect the immune system

pregnancy
pre-existing conditions, chronic disease
malignancy
immunosuppressive disorders
stress
malnutrition
age
lymph node dissections
corticosteroids, chemo, radiation
indwelling lines and tubes
implante devices
obesity

4

what is a virus

a sub cellular organism made up only of a ribonucleic acid (RNA) or deoxyribonucleic acid (DNA) covered with proteins

5

why are viruses hard to treat

they have rapid replication and high mutation rates

6

most (but not all) viruses are...

self-limiting, meaning that don't need a specific antiviral therapy

7

TF: antibiotics are effective on viruses

false, they are not

8

there are antiviral drugs for what 4 things

HIV, herpes, hepatitis, influenza

9

TF antiviral drugs are subject to resistance

true

10

what are some examples of viruses

SARS-CoV-2, influenza, herpes, hepatitis, meningitis, pneumonia, common cold

11

what is bacteria

single cell microorganism with a well defined cell walls that can grow independently on artificial media, without the need for other cells.

12

bacteria are classified by

shape and oxygen need

13

what constitutes about 38% of pathogen

bacteria

14

bacteria is treated with

antibiotics (but it needs to be specific)

15

what are some examples of viruses

strep, staph, clostridium, E.Coli.

16

what is fungi

a single celled or multicellular organism

17

what are the two forms of fungi

true pathogen
opportunistic pathogen

18

what is a true pathogen

causes infections in healthy people, like histoplasmosis, and coccidiodomycosis.

19

what is an opportunistic pathogen

causes infections in immunocompromised people, like aspergillosis, candidiasis, cryptococcosis.

20

what is a common fungi, and what does it cause

yeast, and it causes thrush, diaper rash and athletes foot

21

fungi is used to develop

antibiotics, antitoxins, and other drugs

22

how do you treat fungi

antifungals or antivirals applied directly to the skin, or injected if serious infection

23

what are parasites

an organism that lives on or in a host and gets its food from or at the expense of its host

24

where are parasites more common

in rural areas, or developing areas

25

what is the mode of transmission for parasites

through the mouth or the skin

26

what are common types of parasites

pinworms, trichomoniasis, toxoplasmosis, intestinal infections, giardiasis, and cryptosporidosis, malaria.

27

how do you treat parasites

anti parasitic drugs,

28

what are prions

infectious agents composed entirely of protein material that can fold in multiple, structurally distinct ways leading to disease that is similar to a viral infection

29

how are prions transmitted

animal to human

30

what are prions characterized by

long latent intervals in the host, that when reactivated cause a rapidly progressive deteriorating state