Swine Influenza

Question 1

Etiology of Swine Influenza

Answer 1

Swine influenza virus (SIV)

Question 2

The two subtypes associated with disease in swine with SIV:

Answer 2

H1N1; H3N2

Question 3

Can swine influenze potentially be zoonotic?

Answer 3

Yes

Question 4

“Swine” Flu of 2009 has swine, avian, and human origin genes, but appears to be a disease of _____.

Answer 4

Humans - all swine cases to date have been associated with infected humans exposing swines

Question 5

Two clinical syndromes of swine influenze are:

Answer 5

Epizootic and Enzootic

Question 6

The epizootic clinical syndrome of swine influenza has a ____ morbidity, and ___ mortality. Results in a dry “_____” cough, high fevers, depression, complete anorexia. Recovery within ___ to ___ days.

Answer 6

• high morbidity, low mortality
• “barking”
• 10-14 days

Question 7

Which clinical syndrome of swine influenza has milder clinical signs? Epizootic or enzootic?

Answer 7

Enzootic

Question 8

Which clinical syndrome of swine influenza is the contributing factor with other respiratory pathogens to porcine respiratory disease complex (PRDC)?

Answer 8

Enzootic clinical syndrome

Question 9

Lesions of swine influenza

Answer 9

diffuse hyperemia, atelectasis, emphysema

Question 10

You can diagnose swine influenza via detection of viral components. However, the virus is detectable only a few days _____.

Answer 10

after infection

Question 11

The standard serological test for detection of antibody in serum for swine influenza is:

Answer 11

Hemagglutination inhibition (HI)

Question 12

HI test is specific for _____.

Answer 12

Subtype

Question 13

What is the treatment of swine influenza?

Answer 13

There is no specific treatment, but you can:

• Minimize stresses
• Antibacterials in drinking water for secondary infections
• Anti-inflammatory drugs (flunixin, aspriin)

Question 14

Vaccines are available for both H1N1 and H3N2 subtypes. Is there cross-protection between subtypes?

Answer 14

No!