Quiz 2 Ruminants Resp and Gastro

Question 1

Genus and Family for Parainfluenza 3 infection?

Answer 1

Respirovirus

Paramyxoviridae

Question 2

How does Parainfluenza 3 look like under the microscope?

Answer 2

Syncytiums and Intracytoplasmatic inclusion bodies

Question 3

What are some causes of Shipping Fever?

Answer 3

Parainfluenza 3 Infection

Bovine Respiratory Syncytial Disease

IBR

Adenovirus

Question 4

C/S of Parainfluenza 3?

Answer 4

Fever
Lacrimation
Serous nasal discharge
Depression
Dyspnea
Coughing

Shipping fever

Question 5

Dx of Parainfluenza?

Answer 5

its difficult bc its asymptomatic or very mild symptoms

IF
ELISA
of nasal discharges

Question 6

How is Parainfluenza transmitted?

Answer 6

Aerosals and fomites contaminated with nasal discharges

Question 7

Vacc for Parainfluenza?

Answer 7

Several attenuated vacc for intranasal

Question 8

Whend should you give the vacc for Parainfluenza?

Answer 8

If you planning for transport, give a few days before so they have enough time to produce an immune response

Question 9

Pneumovirus

Paramyxoviridae

Answer 9

Bovine Respiratory Syncytial Dz

Question 10

What is the morb and mort for Syncytial dz?

Answer 10

High morbidity

Low mortality

Question 11

What dz can seroconversion is short lived, and reinfection can occur?

Answer 11

Bovine Resp Syncytial Dz

Question 12

Dx of Syncytial Dz

Answer 12

Difficult

IF from lung lavage or necropsy, serology on paired samples are difficult to interpret.

Question 13

How can you control Syncytial Dz?

Answer 13

new mucosal vacc

More common in winter, spreads rapidly by aerosals, probably existence of carriers.

Question 14

Bovine Herpesvirus 1

Herpesviridae

Answer 14

IBR

Question 15

IBR C/S

Answer 15

Rhinotracheitis
Pustular Vaginitis
Balanopothitis
Conjunctivitis
Abortion
Enteritis
Generalized dz in calves and possilby Encephalitis.

Question 16

What its important to remember about that long list of C/S for IBR

Answer 16

These c/s rarely present in the same herd at the same time

Question 17

If a cow is presenting with Fetid breath, dypsnea, mouth breaking, salivation, and a deep bronchial cough?

Answer 17

IBR

Question 18

When does abortion occur in IBR

Answer 18

can occur at 4-7 mo gestation

RARE though

Question 19

Lesions on aborted fetuses look like?

Answer 19

No gross lesions

Microscopically necrotic foci mainly on the liver

Question 20

Dx of IBR?

Answer 20

EM

IF

PCR

Question 21

Control of IBR?

Answer 21

Major importance in feedlots.

Think about shipping fever–stressful situations

try to keep everyone stress free

Question 22

IBR, does it have vacc?

Answer 22

Yes! Do not prevent infection, but reduce incidence and severity of dz

DIVA

Question 23

Grp A _____ from the Reoviridae

Answer 23

Rotavirus

Question 24

Genome of Rotavirus

Answer 24

RNA, Segmented,
Naked

Reassortment occurs

Question 25

White scours/Milk Scours?

Answer 25

Rotavirus gastroenteritis

Question 26

Transmission ofRotavirus?

Answer 26

Fecal Oral

Question 27

When can calves become infected with rotavirus?

Answer 27

First couple of weeks post birth

Question 28

CS of rotavirus

Answer 28

Moderately depressed but will continue to eat Feces are voluminous, soft to liquid and often contain large amounts of mucus

Question 29

Whats important to remember about young if they get rotavirus?

Answer 29

They can die from dehydration but most will recover in 3-4 days

Question 30

What part of the villi does rotavirus effect?

Answer 30

Top of the villi-they become shortened with cuboidal cells which will secrete less lactase and are less able to carry out glucose couple sodium transport The undigestd lactose in milk cause bacterial overgrowth and has osmotic effect both contributing to further diarrhea

Question 31

Dx of Rotavirus?

Answer 31

Clinical Presentation | Definite with EM, ELISA, RT-PCR

Question 32

Controlling Rotavirus

Answer 32

Excreted in feces a high numbers and resistant in the environment You want local immunity in the SI

Question 33

Vacc for rotavirus?

Answer 33

Vacc mother with inactivated virus vacc promotes higher levels of maternal Ab in colostrum and milk

Question 34

Winter dysentery?

Answer 34

Coronavirus

Question 35

Coronavirus or Rotavirus can cause diarrhea in humans?

Answer 35

Corona

Question 36

When can dz of calves been seen with Corona?

Answer 36

1 wk old when the maternal Ab begin to wane off

Question 37

When do you vacc for corona?

Answer 37

Vacc dam to provide high levels of maternal Ab in colostrum or use colostrum from donors that are hyperimmunized