Porcine Circovirus Type 2 Associated Disease (PCVAD) Flashcards Preview

Food Animal > Porcine Circovirus Type 2 Associated Disease (PCVAD) > Flashcards

Flashcards in Porcine Circovirus Type 2 Associated Disease (PCVAD) Deck (13):
1

Etiology

Porcine circovirus type 2 (PCV2)

2

PCV2 emerged as a swine pathogen of significance in the late 19___'s.

1990s

3

PCVAD was formerly known as:

Post-weaning multisystemic wasting syndrome (PMWS)

4

Clinically affected herds often see nursery mortality between ____ and ____ %

5-15%

5

What is the common age range of affected pigs with PCVAD?

5-12 weeks old

6

Common clinical signs of PCVAD

  • Progressive weight loss (wasting)
  • Dyspnea
  • Visibly enlarged lymph nodes

7

Less frequent clinical signs of PCVAD include:

  • Icterus
  • Pallor
  • Diarrhea

8

Can you assume all herds are affected by PCV2?

Yes - safe to assume this

9

Lesions of PCVAD

  • Interstitial pneumonia, necrotizing bronchitis
  • Generalized lymphadenopathy 
  • Basophilic intracytoplasmic inclusion bodies in lymphoid cells
  • Lymphocytic hepatitis, nephritis, enteritis 

10

Can you use serology for antibody to diagnose PCVAD?

Not really, because this disease is very ubiquitus, and normal pigs may carry antibody.

11

Better ways to diagnose PCVAD than serology:

PCR and immunocytochemistry 

12

After vaccines were put on the market, did mortality decrease? Is vaccine use recommended for most herds?

Yes! (decreased from 15-5% to 2-3%) And vaccine use is recommended for most herds - almost 100% of herds are vaccinated!

13

PCVAD frequently coinfects with other 'intensifier diseases' - list two examples:

PPV (parvo), PRRSV