Viral And Chlamydial Infections

Question 1

What is Acute Respiratory Disease

Answer 1

The cold

Question 2

What kind of infection:

“Benign, transitory and self-limited”

Answer 2

Cold

Question 3

What agents cause ARD/cold

Answer 3

Adenoviruses and unknown viruses 30-40%*****

Rhinoviruses

Coronaviruses

Question 4

Are colds caused by cold temperatures

Answer 4

Data suggests there is no DIRECT link, but we don’t know for sure

Question 5

How are rhinoviruses spread?

Answer 5

Aerosols

Fomites

Direct contact

EVERYTHING

Question 6

What is the best way to control rhinovirus

Answer 6

Washing hands

Question 7

We have a cure for the common cold! What is it and why don’t we use it?

Answer 7

Picovir

Only works against Rhinoviruses

Not approved because of unknown side effects and colds are “benign, transitory and self limited”

Question 8

What do we think causes acute flaccid myelitis

Answer 8

Viral etiology suspected, but not proven

Question 9

What is the worst influenza species

Answer 9

A

Question 10

How do we deterring the antigenic subtype of each strain of flu

Answer 10

Envelope proteins

H: hemagglutinin

N: Neuraminidase

Question 11

If you diagnose a patient with the flu, and they call back and say they had a relapse, what do you need to ask them?

Answer 11

If the fever went away and then came back.

Indicates they have a secondary pneumonia which can kill them

Question 12

Which 3 bacteria tend to cause secondary bacterial pneumonia after a bout of influenza

Answer 12

Strep pneumo

Staph aureus

Haemophilus influenza type B (Hib)

Question 13

Which has a higher risk of causeing Guillain Barre syndrome: the flu shot or getting the flu

Answer 13

Getting the flu 10 fold higher risk

Question 14

If you get a negative rapid antigen test when trying to diagnose the flu, does it mean they don’t have the flu?

Answer 14

No, RATs sometimes fail.

False negatives are common in early course of disease

Question 15

All flu shots are now ______

Answer 15

Quadrivalent

Question 16

What is the intradermal flu shot?

Answer 16

Flu shot with an itty bitty needle and the antigen is injected under the skin. Increased pain at injection site later.

Question 17

What about type A influenzas allows them to create novel forms that cause pandemics

Answer 17

Segmented genome

Question 18

What species do Type A influenza viruses like to target?

Answer 18

BROAD host range, especially the animals we like to eat (chicken and pigs )

Question 19

Can we predict flu pandemics

Answer 19

No

Question 20

Which bacteria is considered biochemically restricted and an energy parasite?

Answer 20

Chlamydia. Removes ATP from the host

Question 21

How do neonates get chlamydia trachomatis

Answer 21

Infected mother. Aspirates it during birth=pneumonia

Question 22

How soon after birth will a baby start showing pneumonia if he aspirated chlamydia trachomatic from his infected mom

Answer 22

~3 weeks