Question

Haepatopancreatic Acute Necrosis Disease otherwise called as

• A. Running mortality syndrome
• B. Early mortality syndrome
• C. White faeces syndrome
• D. Loose shell syndrome

Hint:

AHPND EMS is caused by Vibrio parahaemolyticus releasing PirA and PirB toxins.
It results in severe necrosis of the shrimp hepatopancreas.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Shrimp aquaculture has suffered severe economic losses due to major infectious diseases caused by viral and bacterial pathogens.

Step 2: Detailed Explanation:
Acute Hepatopancreatic Necrosis Disease (AHPND) is a devastating bacterial disease of cultured shrimp caused by specific strains of Vibrio parahaemolyticus that carry a toxin-producing plasmid.
When it first emerged around 2009--2010, causing massive mortalities within the first 30 days of stocking, it was named Early Mortality Syndrome (EMS).
Subsequent research identified the pathogen and pathological changes in the hepatopancreas, leading to its formal name AHPND.

Step 3: Final Answer:
The disease is otherwise called Early mortality syndrome, corresponding to option (B).