1. CATTLE: BOVINE HERPESVIRUS 1-Bovine infectious rhinotracheitis-pustular vulvovaginitis-''RED NOSE''

Question 1

disease

Answer 1

-BOVINE HERPESVIRUS 1

-Bovine Infectious Rhinotracheitis-Pustular-Vulvovaginitis

-‘‘RED NOSE’’

-FIN: Naudan Herpesvirus 1 Infektio

Question 2

disease

Answer 2

contagious disease of cattle

Question 3

caused by

Answer 3

HERPESVIRUS

Question 4

characterized by

Answer 4

infectious rhinotracheitis and infectious pustular vulvovaginitis

Question 5

agent

Answer 5

-agent: BOVINE HERPESVIRUS 1 (BHV-1)

> genus: Varicellovirus
family: Herpesviridae

-DNA virus

Question 6

3 subtypes

Answer 6

-BHV-1.1: RESPIRATORY subtype

-BHV-1.2: GENITAL subtype

-BHV-1.3: ENCEPHALITIC subtype > reclassified as separate virus = BHV-5

Question 7

survival at

Answer 7

room temperature for 45 days

Question 8

HR

Answer 8

-cattle

Question 9

in humans

Answer 9

NO

Question 10

all age groups are

Answer 10

susceptible but most clinical cases in :

> more 6 month-olds

Question 11

colostral immunity

Answer 11

1-6 months

Question 12

most common

Answer 12

-RESPIRATORY disease

> BHV-1.1

Question 13

reported

Answer 13

some countries are free : FINLAND-eradicated

Question 14

in dairy herds M&M

Answer 14

-Morbidity 8-100%

-Mortality 3-10% - often due to secondary bacterial infections

> Beef cattle have higher morbidity & mortality rates

Question 15

transmission: excretion

Answer 15

-nasal
-ocular and vaginal discharge
-urine
-sperm

Question 16

transmission: mode

Answer 16

-direct contact:
>venereal transmission,
>with sperm

-fomites:
>feed
>water

-aerogenic: RESPIRATORY form (BHV-1.1)

Question 17

transmission: route

Answer 17

-respiratory

or

-genital

Question 18

latent carriers

Answer 18

virus mostly persist in portal of entry

Question 19

can be isolated in

Answer 19

-trigeminal ganglion

-sometimes also in CNS

Question 20

latent infections can

Answer 20

-reactivate with or without clinical symptoms
>under conditions of stress
>or by experimental methods

Question 21

during reactivation virus is

Answer 21

-SHEDDED IS HIGH TITERS= continues for lifetime

> in endemic herds all animals should be treated as potential source of BHV-1

Question 22

IP

Answer 22

2-6 days

Question 23

2 forms

Answer 23

-RESPIRATORY form

and

-GENITAL form

Question 24

clinical signs: RESPIRATORY FORM: INFECTIOUS BOVINE RHINOTRACHEITIS (IBR): clinical signs of upper respiratory tract

Answer 24

-(muco) purulent nasal discharge

-hyperemia of muzzle (RED NOSE DISEASE)

-conjunctivitis

Question 25

clinical signs: RESPIRATORY FORM: INFECTIOUS BOVINE RHINOTRACHEITIS (IBR): signs of general illness

Answer 25

-fever

-depression

-inappetence

-abortions-may occur concurrently with respiratory disease but may be seen up to 100 days after infection
>commonly during SECOND HALF OF PREGNANCY

-reduced milk yield

Question 26

clinical signs: RESPIRATORY FORM: INFECTIOUS BOVINE RHINOTRACHEITIS (IBR): IBR suomeksi

Answer 26

NAUDAN TARTTUVA RHINOTRAKEIITTI

Question 27

CS: GENITAL FORM: INFECTIOUS PUSTULAR VULVOVAGINITIS (IPV): pustular vulvovaginitis

Answer 27

-frequent urination

-elevation of tailhead

-mild vaginal discharge

-vulva is swollen: small pustules > erosions > ulcers : on mucosal surface

Question 28

CS: GENITAL FORM: INFECTIOUS PUSTULAR VULVOVAGINITIS (IPV): balanoposthitis

Answer 28

-inflammation of glans penis and foreskin

Question 29

PM

Answer 29

-rhinitis

-laryngitis

-tracheitis

-pustular lesions

Question 30

PM

Answer 30

-FMD
-BVDV
-Adenovirus
-Malignant catarrhal fever of cattle
-PI-3
-Pasteurellosis
-Rinderpest
-BRSV

Question 31

diagnosis: material

Answer 31

-SWABS from: nasal cavity, eyes and vagina

-lung, LNs , brain

-aborted fetuses and fetal membranes

-sperm and preputial discharge

-blood