MT2 - Reo Flashcards
(62 cards)
1) Orbiviruses spread by droplet (aerosol) infection
F
2) Orbiviruses can be cultivated in vivo by inoculation of embryonated eggs
T
3) Genetic reassortments may cause significant antigenic changes in reovirus strains
T
4) Orbiviruses are serologically uniform
F
5) Orthoreoviruses frequently cause tenosynovitis of horses
F
6) Orthoreoviruses can cause pneumoenteritis in calves
T
7) Avian orthoreoviruses cause mainly nephritis and encephalitis
F
8) Infection of adult birds with orthoreoviruses usually remains subclinical
T
9) Avian orthoreoviruses usually transmitted by germinative route
T
10) Avian orthoreoviruses can cause damages in the bursa Fabricii
T
11) Mammalian orthoreoviruses can cause pneumoenteritis only in suckling animals
F
12) Rotaviruses are sensitive to environmental conditions
F
13) Rotavirus infection is sporadic within the herd
F
14) Rotavirus only infects mammals
F
15) Clinical signs of rotavirus infection are usually seen in animals older than 2 weeks of age
F
16) Swine is not susceptible to rotavirus infection
F
17) Rotaviruses predispose to E.Coli infection in suckling piglets
T
18) Rotaviruses are shed in the faeces in high titres
T
19) Rotavirus infection results in high mortality
F
20) Avian rotaviruses are transmitted by germinative infection
F
21) Losses due to rotavirus infection of young animals can be prevented by colostrum feeding
T
22) Rotaviruses usually cause enteritis in young (1-2 weeks old) animals
T
23) Clinical signs of rotavirus infection are usually seen in animals older than 2 weeks of age
F
24) Rotaviruses damage the mucosa of the large intestines
F
