Reports received in 2025, as of the 2nd quarter, only came from few member governments including: Australia, Hong Kong SAR, India, Indonesia, Malaysia, Myanmar and Saudi Arabia. Listed below are the reported aquatic animal diseases covering the first and second quarters of 2025.  The original and updated reports can be accessed at the Quarterly Aquatic Animal Disease report page.

Finfish Diseases

• Infection with epizootic haematopoietic necrosis virus: Australia in wild juvenile (6 months to 1 year of age) redfin perch (Perca fluviatilis).
• Infection with Aphanomyces invadans (EUS): India in great snakehead (Channa marulius)
• Infection with Koi herpesvirus (KHV): Indonesia and Malaysia in common carp (Cyprinus carpio).
• Infection with Tilapia lake virus (TiLV): India in tilapia (Oreochromis niloticus); Indonesia in tilapia (O. niloticus); and, Malaysia in tilapia (Oreochromis spp.).
• Viral encephalopathy and retinopathy (VER): Australia in farmed jungle perch (1-2 years of age (Kuhlia rupestris); and, Indonesia in pompano (Trachionotus blochii).
• Enteric septicaemia of catfish: Indonesia in common carp (C. carpio)

Crustacean Diseases

• Infection with white spot syndrome virus (WSSV): Indonesia in whiteleg shrimp (Penaeus vannamei). 
• Infection with yellowhead virus genotype 1 (YHV-1): Malaysia in black tiger shrimp (P. monodon).
• Infection with infectious myonecrosis virus: Indonesia in P. vannamei; and, Malaysia in P. monodon.
• Infection with infectious myonecrosis virus (IMNV): Indonesia in P. vannamei; and, Malaysia in P. monodon.
• Hepatopancreatic Microsporidiosis caused by Enterocytozoon hepatopenaei (HPM-EHP): Indonesia in P. vannamei; and, Malaysia P. vannamei and P. monodon.

Amphibian Diseases

• Infection with Batrachochytrium dendrobatidis: Australia in an unknown species of amphibian.

Other Diseases

• India reported Infection with Tilapia parvovirus in O. niloticus.

Prepared by: Eduardo Leaño, Director General and Senior Programme Officer (Health and Biosecurity)