Question

Arrange the etiology of Talfan disease, Lyme disease, Blight and Nairobi disease in correct order
A. Borrelia burgdorferi
B. Porcine enterovirus
C. Bunya virus
D. Morexella bovis
Choose the correct answer from the options given below:

• A. B, A, D, C
• B. C, A, B, D
• C. B, D, A, C
• D. D, C, A, B

Hint:

Remember: Talfan = Porcine enterovirus (B); Lyme = Borrelia burgdorferi (A); Infectious Bovine Keratoconjunctivitis (Blight) = Moraxella bovis (D); Nairobi sheep disease = Nairovirus (Bunyavirales) (C).

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Veterinary medicine associates specific diseases with their corresponding bacterial or viral etiologies.
This question requires matching each listed disease (Talfan disease, Lyme disease, Blight, and Nairobi sheep disease) with its correct pathogen and arranging them in that exact sequence.
Detailed Explanation:
Let us match each disease in the sequence with its corresponding etiology:
1. Talfan disease: A benign, polioencephalomyelitis of pigs caused by specific serotypes of B. Porcine enterovirus (specifically Enterovirus G, formerly Teschovirus).
2. Lyme disease: A tick-borne zoonotic disease characterized by arthritis, carditis, and neurological signs, caused by the spirochete A. Borrelia burgdorferi.
3. Blight: Also known as Infectious Bovine Keratoconjunctivitis (IBK) or pinkeye in cattle, this acute ocular disease is caused by the bacterium D. Morexella bovis.
4. Nairobi disease (Nairobi sheep disease): A tick-borne, highly fatal viral disease of sheep and goats characterized by hemorrhagic gastroenteritis, caused by the Nairobi sheep disease virus, which belongs to the family Nairoviridae under the order C. Bunya virus (Bunyavirales).
Arranging these etiologies in the order of the diseases (Talfan $\rightarrow$ Lyme $\rightarrow$ Blight $\rightarrow$ Nairobi) yields: B, A, D, C.

Step 2: Final Answer:
The correct order is B, A, D, C, which is Option (A).