Herpes + IBR + Bovine Herpes Mamilitis + Inclusion Body Rhinitis of Swine + MCF Flashcards
Herpesviruses are good antigens
F
Alphaherpesviruses are host specific slowly multiplying (>24hrs) viruses
F
Alpha = Fast replication → Rapid destruction of host cells + Boarder Host Range
Beta = Slower replication + More limited host range
Gamma = Variable replication → Very limited host range
Alphaherpesviruses may cause latent infection in neurons or ganglia
T
Some herpesviruses have a broad host spectrum (euryxen
T
alphaherpesvirinae
Gammaherpesviruses may cause latent infection in neurons of ganglia
F
Herpes viruses are resistant to detergents
F
Enveloped with low resistance
Herpesviruses are sensitive to detergents
T
Herpesviruses are generally weak antigens
T
Herpesviruses can cause latent persistent infections
T
Herpesviruses are typically stenoxen viruses, but there are significant exceptions
T
Herpesviruses are strong antigens, therefore single vaccinations provide lifelong protection
F
Herpesviruses are enveloped viruses, therefore they are sensitive to detergents
T
Because the genome of herpesviruses is very stable, no attenuated mutant vaccine strains are available
F
Not stable we have deletion and point mutations on the genome
Infectious bovine vulvovaginitis virus strains cause abortions and foetal deformities
F
Sporadic abortions yes but not together with IPV
Also never foetal deformities (monsters)
Herpesvirus infections frequently result in latent virus carry
T
Herpesviruses usually cause latent infections and life-long virus carries
T
Infectious bovine rhinotracheitis virus can cause abortion
T
The use of marker vaccines can help the eradication of infectious bovine rhinotracheitis virus
T
Marker vaccines together with selection procedure if seropositive are more than 10% of the total tested
The most frequently used eradication strategy for IBRV is selection with the help of marker vaccines
T
Marker vaccines can be used in IBRV eradication programs in cattle farms
T
Antibodies against infectious bovine rhinotracheitis virus (IBRV) might be detected in the milk
T + blood/serum
Also sampling for direct detection can be:
semen + vaginal discharges + ocular discharges + nasal discharges
Conjunctivitis and blepharitis are signs of infectious bovine rhinotracheitis
T
The infectious bovine rhinotracheitis virus (IBRV) causes haemorrhagic gastroenteritis
F
IBR causes cns (L-TOD) + resp + repro
Infectious bovine rhinotracheitis virus also causes mastitis in cows
F
Infectious bovine rhinotracheitis virus is transmitted by arthropods
F
Infectious bovine rhinotracheitis virus can cause fatal encephalitis in calves
T
Infectious Bovine Rhinotracheitis virus frequently causes encephalitis in old cow and bulls
F
in young animals not old
Infectious Bovine Rhinotracheitis virus frequently causes encephalitis in old sow and bulls
F
Infectious Bovine Rhinotracheitis can be endemic on cattle farms
T
Infectious bovine rhinotracheitis virus can cause skin lesions on the genitals
T
Bulls can shed the infectious bovine rhinotracheitis with semen
T
The infectious bovine rhinotracheitis virus (IBRV) may spread via semen
T
Pregnant cows should be immunized with inactivated vaccines against IBRV
T
Live can cause abortion
Pregnant cows should be immunized against IBRV only with inactivated vaccine
T
Attenuated vaccines are used in pregnant cows against Infectious Bovine Rhinotracheitis virus
F
they cause abortion only inactivated are use in pregnant animals
Pregnant cows can be immunized against IBRV only with attenuated vaccines
F
Because Bovine herpesvirus l causes latent infections; it is not possible to eradicate it from a cattle population
F
it is with 3 eradication methods (selection procedure + Generation shift + Herd Replacement)
Bovine herpesvirus l may cause encephalitis in calves
T
in less than 5 months not in old animals
IBRV may cause encephalitis in calves
T
Only inactivated vaccines are available against Bovine herpesvirus 1
F
Bovine herpesvirus 1 may be transmitted through semen
T
Seropositive cattle cannot be carriers of the Infections Rhinotracheitis virus
F
very funny
Infectious Bovine Rhinotracheitis virus (IBRV) can be transmitted through vectors
F
The IBR virus causes nephritis in calves usually in the age between one and six months
F
nephritis is in MCF together with liver damage (pathology)
Infectious Bovine Rhinotracheitis (IBR) cause serous nasal discharge
T
watery then purulent
Infectious Bovine Rhinotracheitis in 6-month-old calves usually causes pneumonia
T
bronchopneumonia
Infectious Bovine Rhinotracheitis in cattle 6 months of age can cause encephalitis
F
usually less than 5 months old
Infectious Bovine Rhinotracheitis often cause genital lesions with vesicles
T
Infectious Bovine Rhinotracheitis may cause inflammation of conjunctiva
T
yes and ocular discharge with the virus for swabs
Infectious Bovine Rhinotracheitis cause purulent nasal discharge
T
In Hungary the IgE-negative marker vaccine is to be used in the control of Infectious Bovine Rhinotracheitis
T
Infectious Bovine Rhinotracheitis is rapidly spread within the herd
F
IBR slowly
MCF rapidly
Infectious Bovine Rhinotracheitis is no longer present in Hungary
F
The respiratory form of Infectious Bovine Rhinotracheitis is often followed by genital symptoms
F
rarely together
Infectious Bovine Rhinotracheitis spreads slowly within a herd
T
We can see characteristic clinical signs of Infectious Bovine Rhinotracheitis in day-old calves
F
We are doing Infectious Bovine Rhinotracheitis virus eradication programs in Hungary
T
with discriminative elisa and ige negative marker vaccines
Infectious Bovine Rhinotracheitis virus mainly cause encephalitis in cattle older than 6 months.
F
Infectious Bovine Rhinotracheitis mainly causes pneumonia in 1-6 months old calves
T
Infectious Bovine Rhinotracheitis is rare, BHV-1 only affects cattle
F
+ other ruminants too
In the transmission IBRV, the most important route is the germinative route
F
aerogenous
Genital form of IBR is often followed by abortion
F
IPV never occurs with abortion
IBR can occur in several clinical forms
T
IBR is a frequent infection, cattle and its closest relatives are affected
T
Bovine Herpes virus 2 frequently causes abortion
F
affects the teats and the udder and rarely spread to perineal region or generalised Pseudo lumpy skin disease
Bovine herpes mamillitis virus can cause mastitis in cows
T
Bovine herpes mamillitis virus may cause lesions on the muzzle of suckling calves
T
The bovine herpes mamillitis virus causes lesions on the skin of the milkers, therefore it is a zoonotic agent
F
not pox not milkers nodules
Bovine herpesvirus 2 may cause generalised skin lesions
T
pseudo lumpy skin disease
Bovine herpesvirus 2 is the most frequent primary cause of mastitis in cattle
F
most frequent is bacterial infections?
Bovine Herpes Mammillitis virus causes milkers’ nodules in humans
F
Bovine Herpes Mammillitis virus may cause lesions on the lips of milking calves
T
Regarding Bovine Herpes Mammillitis, mainly heifers show clinical signs
T
Swine inclusion body rhinitis virus is causing mainly subclinical infection
T
Bloody nasal discharge can be a sign of swine inclusion body rhinitis
T
Clinical manifestation of swine inclusion body rhinitis is usually seen in piglets less than 3 weeks old
T
Inclusion body rhinitis is predisposing to fatal respiratory disease in pigs
T
Bacterial rhinitis?
Suid herpesvirus 2 may cause upper respiratory tract disease in piglets
T
Swine Inclusion Body Rhinitis is usually seen in piglets
T
The Swine Inclusion Body Rhinitis virus may cause reproductive problems in sows
T
SMEDI like
Malignant catarrhal fever is mostly fatal in sheep
F
Malignant catarrhal fever is an alphaherpesvirus causing latent infection in ganglia
F
Malignant catarrhal fever develops only in suckling calves up to two weeks of age
F
Malignant catarrhal fever can be seen only in calves younger than one month
F
Malignant catarrhal fever causes only mild respiratory disease in sheep
F
Sheep should be immunised against malignant catarrhal fever virus
F
Malignant catarrhal fever may develop in swine too
T
they are sporadically sick
Malignant catarrhal fever is frequently seen in cats
F
Cattle should be vaccinated against malignant catarrhal fever
F
no treatment no vaccination do not mix with sheep
Goats are the reservoir hosts of the malignant catarrhal fever virus
F
The incubation period of malignant catarrhal fever is less than one week
F
Malignant catarrhal fever is quickly spreading from cattle to cattle
F
Cattle should be vaccinated against malignant catarrhal fever in every six months
F
The malignant catarrhal fever is caused by Bovine Herpes virus-2
F
Malignant Catarrhal Fever is usually lethal in cattle.
T
Rodents are the reservoir hosts of the Malignant Catarrhal Fever virus
F
Swine are the reservoir host of the Malignant Catarrhal Fever virus
F
The Malignant Catarrhal Fever is caused by Bovine herpesvirus-2
F
We vaccinate calves 2 times against Malignant Catarrhal Fever
F
Swine are affected by Malignant Catarrhal Fever
T
Malignant Catarrhal Fever does not occur in Europe
F
mainly usa africa and asia but sporadically in EU
Malignant Catarrhal Fever can cause diarrhoea
T
Malignant Catarrhal Fever spreads slowly within a cattle herd
F
IBR slowly
MCF Fast
Malignant Catarrhal Fever occurs if we keep cattle and sheep together
T
Malignant Catarrhal Fever does not occur in Hungary
F