Lecture 12 Pathogenic Bacteria

Question 1

Nosocomial Infections affect what percentage of hospital patient

Answer 1

5-15%

Question 2

What is Pathogenicity

Answer 2

Ability to cause a disease

Question 3

What is Virulence

Answer 3

The extent of Pathogenicity

Question 4

What binds to receptors on host cells

Answer 4

•Adhesins
•Ligands

Question 5

When Adhesins/Ligands bind to receptors on host cells what do they form

Answer 5

Biofilms

Question 6

What does Listeria use to move from one cell to the next

Answer 6

Actin

Question 7

what does Salmonella alter to enter a host cell

Answer 7

Host actin

Question 8

What is Toxigenicity

Answer 8

Ability to produce a toxin

Question 9

What is Toxemia

Answer 9

Presence of a toxin in the hosts blood

Question 10

B. Pertussis a gram negative bacteria what shape is it

Answer 10

Rod shaped organism

Question 11

B. Pertussis has a similar cell envelope to

Answer 11

P. aeruginosa.

Question 12

What shape is gram negative H. pylori

Answer 12

Spiral shaped

Question 13

Name the eye bacterial disease caused by Chlamydia trachomatis

Answer 13

Trachoma

Question 14

Bacillus anthracis that enters through a minor cut has what % of a mortality rate

Answer 14

20%

Question 15

Bacillus anthracis that causes gastrointestinal anthrax is caused by and has a mortality rate of

Answer 15

•Ingestion of undercooked , contaminated food
•50% mortality rate

Question 16

Bacillus anthracis that causes Inhalational (pulmonary) anthrax is caused by and has a mortality rate of

Answer 16

•Inhalation of endoscopes
•100% mortality

Question 17

What is Typhoid Fever caused by

Answer 17

Salmonella typhi

Question 18

How many deaths/yr from Typhoid Fever

Answer 18

200,000