Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
Will enveloped viruses be inactivated by lypophilization?
|
NO
|
|
|
Why do all influenza vaccines have the HA protein?
|
Because the HA protein is the most antigenic and in included in viral neutralization
|
|
|
Equine Influenza virus
|
-ssRNA, segmented
|
|
|
How is mucous penetration and virus spread accomplished in Equine Influenza virus?
|
NANA(receptor determinants) are in the glycoconjugates of the mucous, they attach to the HA antigen but the NANAase breaks them down, liquifying the mucous
|
|
|
Where does Equine influenza relicate the most, and where is the most severe disease causes?
|
Upper respiratory tract
Lower respiratory tract |
|
|
How are the subtypes of influenza A determines?
|
HA and N antigens
|
|
|
Herpes viruses that cause repiratory infections belong to what family?
|
Alphaherpesviruses
|
|
|
Characteristics of Alphaherpeviruses...
|
fast replication, inclusion, cytocidal
|
|
|
What is the incubation period for feline herpesvirus infection?
|
24-48 hours
|
|
|
What vaccines control infections with feline herpes virus 1?
|
Inactivated
Attenuated Live |
|
|
Equine Rhinopneumonitis is...
|
Equine herpes virus 4
|
|
|
Equine rhinopneumonitis replication and infection...
|
Replicates equally well in upper and lower but causes most severe changes in the upper respiratory tract
|
|
|
What can BHV-1 cause in addition to respiratory viruses?
|
Enchephalitis
Infectious Pustular vulvovaginits Balanophoshitis |
|
|
How do viruses causes by BHV-1 differ from the respiratory ones?
|
In the restriction fragment analysis of the DNA fragment
|
