Mod 3: Infection

Question 1

Colonization

Answer 1

dont make you sick, transmitted in all ways

Question 2

invasion

Answer 2

Rapid multiplication and activation of immune/inflamm response
Specific symptoms

Question 3

multiplication

Answer 3

viral-replicate in the cell

bacteria-replicate by splitting (transcription)

Question 4

spread

Answer 4

depends on adhesion, toxins, immune/inflammatory response

Question 5

Incubation period

Answer 5

Pathogen begins active replication W no symptoms

Question 6

Prodromal stage

Answer 6

Initial mild symptoms

Question 7

Convalescence

Answer 7

Containment of infection, resolution of symptoms

Question 8

Immunogenicity

Answer 8

ability to pathogen to induce immune response

Question 9

Pathogenicity

Answer 9

ability to produce disease

Question 10

Toxigenicity

Answer 10

ability to produce endotoxins, affect degree of virulence

Question 11

Epidemic
pandemic
endemic

Answer 11

endemic-high constant rates in a particular population
epidemic-unusually high numbers in a population
pandemic-large area

Question 12

bacteria cell structure

Answer 12

Unicellular, prokaryotic, Xorganelles, have cytoplasm, ribosomes, lipid plasma membrane and rigid sugar/peptide peptidoglycan wall protects from osmotic pressure (site of action abx) 1Dna chromosome and RNA=proteins

Question 13

virus structure

Answer 13

No organized cellular structures, can infect any cell, caspid (protein coat surrounds nucleic acid core (rna/dna)) protects nucleic acid and helps w attachment
Some have lipoprotein envelope derived from host cell membrane (HIV)

Question 14

virus mechanisms, pathogenic properties

Answer 14

Xmetabolism, depends on host to replicate-have to give genetic material to host cell and force them to replicate
Replication can be immediate or dormant when conditions are right

Question 15

Fungi structure
mold
yeast

Answer 15

no peptidoglycan =no abx

mold: branching hyphae filaments
yeast: ovoid/spherical

Question 16

fungi mechanisms, pathogenic properties
mold
yeast

Answer 16

mycosis-mild except w opportunistic infection

candida reproduce by budding

Question 17

clinical manifestations fungi

Answer 17

dermatophytes=tineas-hair skin and nails

Question 18

exogenous and endogenous pyrogens.

Answer 18

exo-from outside, indirectly affects hypothalamus through cells released by host
endo-raise set point thru prostaglandins and turnover in tissue

Question 19

Cocci bacteria

Answer 19

Round, common in strep/staph

Question 20

Bacilli bacteria

Answer 20

Rod shape, ecoli

Question 21

Spirochete bacteria

Answer 21

Helical, treponema pallidum (syphillis)

Question 22

Pleomorphic No rigid cell wall/specific shape

Answer 22

Mycoplasma pneumoniae

Question 23

Rickettia

Answer 23

Intracellular parasite, rod shape, spherical, or pleomorphic

Spread by insects

Question 24

Diplococci

Answer 24

Pairs

Question 25

chains of cocci

Answer 25

Strep

Question 26

Clusters

Answer 26

Staph

Question 27

Bacteria capsule

Answer 27

Surrounds bacteria provides protection against phagocytosis

Question 28

Plasmids

Answer 28

Extra chromosomal DNA that multiply independently from dna,carries genes for resistance and toxin production

Question 29

Pili

Answer 29

Hair that help w attachment

Question 30

Glycocalax

Answer 30

Slime layer secreted helps w attachment