Free Doctor of Veterinary Medicine MCQ Questions and Answers — Questions and Answers
Question 1: The chewing-gum-type seizure is a common anxious symptom in canines suffering from
- Canine Distemper (Correct answer)
- ICH
- Canine parvo viral gastroenteritis
- Rabies
Correct answer: Canine Distemper
The 'chewing-gum' seizure, characterized by repetitive jaw movements, is a classic neurological sign associated with Canine Distemper virus infection. This symptom is often seen in the later stages of the disease when the virus affects the central nervous system. It is a distinct and severe manifestation of this highly contagious and often fatal illness.
Question 2: One of the most common clinical symptoms of the following horse diseases is abortion:
- AHS
- EIA
- Equine Influenza
- Equine viral rhino pneumonitis (Correct answer)
Correct answer: Equine viral rhino pneumonitis
Equine Viral Rhinopneumonitis (EVR), caused by Equine Herpesvirus-1 (EHV-1), is a significant cause of abortion in mares, particularly during the last trimester of pregnancy. The virus can lead to fetal death and subsequent abortion, making it a major concern in equine breeding. Other symptoms include respiratory disease and neurological issues.
Question 3: Chickens with the following illness experience immunological suppression:
- IBD (Correct answer)
- Avian encephalomyelitis
- Avian Influenza
- ILT
Correct answer: IBD
Infectious Bursal Disease (IBD), also known as Gumboro disease, is a highly contagious viral disease of young chickens that primarily targets the bursa of Fabricius. This organ is crucial for B-lymphocyte development, and its damage leads to severe immunosuppression, making the birds highly susceptible to other infections and reducing vaccine efficacy.
Question 4: PPR disease causes high mortality and is more severe than
- Sheep
- Goats (Correct answer)
- Buffalo
- Cattle
Correct answer: Goats
Peste des Petits Ruminants (PPR), also known as sheep and goat plague, is a highly contagious viral disease primarily affecting small ruminants. While both sheep and goats can be infected, the disease is generally more severe and causes higher mortality rates in goats compared to sheep. This difference in susceptibility is a key epidemiological characteristic of PPR.
Question 5: Bluetongue virus biological carriers:
- Ticks
- Mosquito
- Culicoides (Correct answer)
- Flea
Correct answer: Culicoides
Bluetongue virus (BTV) is transmitted primarily by biting midges of the genus *Culicoides*. These insects act as biological vectors, meaning the virus replicates within them before being transmitted to susceptible animals, particularly ruminants like sheep and cattle. Other insects like ticks, mosquitoes, and fleas are not the primary vectors for BTV.
Question 6: An appropriate age for the first rabies immunization is:
- 3 weeks
- 3 month (Correct answer)
- 5 month
- 4 month
Correct answer: 3 month
The first rabies vaccination for puppies and kittens is typically administered around 12-16 weeks of age, which corresponds to approximately 3-4 months. This timing is chosen because maternal antibodies, which can interfere with vaccine effectiveness, have usually waned by this age, allowing the animal to develop its own robust immune response. Local regulations may vary slightly.
Question 7: The minimum number of organisms necessary to cause infection reveals
- Infectivity (Correct answer)
- Virulence
- Pathogenicity
- Susceptibility
Correct answer: Infectivity
Infectivity refers to the ability of a pathogen to establish an infection in a host, and it is often quantified by the infectious dose (ID50). This is the minimum number of organisms required to cause infection in 50% of exposed individuals. This concept helps characterize how easily a pathogen can initiate disease, distinguishing it from virulence (severity) or pathogenicity (general ability to cause disease).
Free Doctor of Veterinary Medicine MCQ Questions and Answers
The chewing-gum-type seizure is a common anxious symptom in canines suffering from