Yersinia enterocolitica

What type of bacteria is yersinia enterocolotica

Gram negative enterobacteriaceae

What is most common source?

Pigs

Can this grow in fridge conditions?

Yes

List characteristics

G-

non-sporogenic, rods

facultative anaerobe

mtile only at 22-25 deg

psychotropic

5-7% nacl salt

ph 4

What biotype / serotype is in cattle in uk?

serotype 0:9

What serotype / biotype do we worry about in pig in the uk ?

bt2 st0:9

pig pathogen

how common is infection?

3rd most common foodborne disease

Where is it found?

throat, tonsils, faeces of pigs

water, soil

dogs

raw + minced pork

• can have asymptomatic carriers

how long does it incubate for?

1-11 days normally 1

List acute infection symptoms

lymphanditis, pseudo apendicitic, speticimia, abscesses

what are some secondary complications of infection?

1-3 weeks later arthritis, myositis, erythema nodosum

List 5 possible exposures

1. pigs / pork

2. cattle / beef

3. milk / milk products

4. vegetable

   1. dogs, cats, rodents, water ect

Name some control measures

biosecurity :

• ID, removal, hygene

Food chain info :

• risk scaling, ID

saughter and dressing, meat insepction :

• haed removal first fro hygenic transfer

  • rectal tying

Maintaing cold, pasturisation, proper cooking