Lecture 28- Infectious Disease

Question 1

What is a pathogen?

Answer 1

Any organism that can cause disease

Question 2

What is the difference between an epidemic and a pandemic?

Answer 2

Epidemic is a widespread outbreak, Pandemic is a worldwide outbreak

Question 3

How is Borrelia burgdorferi transmitted to humans?

Answer 3

Vectored by ticks

Question 4

What is virulence?

Answer 4

The ability of a pathogen or microorganism to cause disease

Question 5

What are merozoites and what do they do?

Answer 5

Plasmodium cells that penetrate erythrocytes (red blood cells) and divide

Question 6

True or False: Lyme disease can be treated with antibiotics.

Answer 6

TRUE

Question 7

How is malaria vectored?

Answer 7

Anopheles mosquitos

Question 8

___________ are cells that develop in a mosquito’s salivary glands, leave the mosquito during a blood meal, and enter hepatocytes, where they multiply

Answer 8

Sporozoites (n)

Question 9

What happens to merozoites (n) after they penetrate erythrocytes and divide?

Answer 9

Form gametocytes (n)

Question 10

A(n) __________ virus is one that can be transmitted from animals to humans.

Answer 10

Zoonotic

Question 11

What happens to gametocytes (n) after a mosquito feeds on the host?

Answer 11

Fertilization, zygote, meiosis-> oocyst forms
Sporozoites produced in mosquito