L11&L12: Food borne zoonoses PART I and PART II

Question 1

What are the Kosher dietary rules?

Answer 1

Meat cannot be eaten with dairy, can’t eat shellfish, no pork

Question 2

What is Shechita?

Answer 2

Ritual slaughter

Question 3

What is done at PM exam for Shechita?

Answer 3

Ensure lungs free of adhesions

Question 4

Which season does Crypto peak in?

Answer 4

Spring

Question 5

What is infective dose like in Crypto and Giardia?

Answer 5

Low

Question 6

How can you destroy Crypto and Giardia?

Answer 6

Pasteurisation and freezing but not chlorine

Question 7

Where can you catch Giardia and crypto?

Answer 7

Water and unprocessed food

Question 8

What are symptoms for giardia and crypto?

Answer 8

Watery diarrhoea, fever for 1-2 weeks

Question 9

Which species get Trichinella?

Answer 9

Pigs and horses, get from rats

Question 10

How long can Trichinella survive in humans?

Answer 10

30 years

Question 11

Why do cultural habits affect Trichinella?

Answer 11

Cooking kills but curing, drying, smoking, fermenting don’t

Question 12

How many days of abdominal symptoms do you get with Trichinella?

Answer 12

1-2 days

Question 13

What symptoms do you get for 2-8 weeks in Trichinella?

Answer 13

Headaches, fever, chills, cough, eye swelling, joint/muscle pain, itchy

Question 14

What affects severity in Trichinella?

Answer 14

Number of worms

Question 15

Where do you take samples to test for Trichinella?

Answer 15

Pig diaphragm, horses tongue

Question 16

Whose responsibility is the on-site lab?

Answer 16

OV

Question 17

Which are the only pigs you test for Trichinella in?

Answer 17

Outdoor pigs

Question 18

What do you do to the pooled sample to detect Trichinella?

Answer 18

Use a magnetic stirrer

Question 19

Which methods kill Trichinella in pigs?

Answer 19

Freezing

Question 20

How many recognised freezing methods are there in pigs?

Answer 20

3

Question 21

How long do C bovis eggs survive?

Answer 21

Less than 6 months

Question 22

How does C bovis contamiante pasture?

Answer 22

Floods of sewage

Question 23

How long after infection are C bovis cysts infective for?

Answer 23

10 weeks

Question 24

How long are C bovis cysts viable for?

Answer 24

Less than 9 months

Question 25

What are clinical signs of C bovis?

Answer 25

Minor weight loss

Question 26

How do you test for C bovis?

Answer 26

Incise masseters and heart

Question 27

What do you do if local infection of C bovis?

Answer 27

Freeze the carcase and only dispose of the infected part depending on if it is viable or non-viable

Question 28

What causes neurocysticercosis?

Answer 28

Taenia solium

Question 29

How does Diphyllobothrium spread to humans?

Answer 29

Crustacean to fish to human

Question 30

What is the usual spread of anisakiasis?

Answer 30

Crustacean to fish to marine mammals

Question 31

How do humans become incidental host of anisakiasis?

Answer 31

Eating raw or undercooked sea food

Question 32

Is scrapie a risk to human health?

Answer 32

No

Question 33

Before what year are cattle banned from the food chain?

Answer 33

1996

Question 34

What are some examples of unprocessed food?

Answer 34

Sliced, boned, minced, ground, skinned, chilled, frozen, cleaned, husked

Question 35

What are some examples of processed food?

Answer 35

Heating, smoking, curing, drying, marinating, extraction, extrusion

Question 36

Which parasites will freezing kill in pig?

Answer 36

Taenia solium and Trichinella

Question 37

Which methods will not kill Taenia and Trichinella?

Answer 37

Curing, smoking, drying, marinating etc

Question 38

Which crypto species are the most common?

Answer 38

Hominis in human, parvum in humans and animals

Question 39

What are the sources of toxoplasma infection?

Answer 39

Raw meat, contaminated water, cat faeces, blood transfusion, congential, contact with lambing material