With the implementation of the new aquatic animal disease reporting in the Asia Pacific region from January 2021, and in lieu of the published QAAD Reports (last issue published was 4th quarter of 2020), NACA is publishing reported aquatic animal diseases submitted by countries in the Asia-Pacific region.  This report covers the first quarter of 2022 and the original and updated reports can be accessed from the QAAD page. The following diseases were reported:

Finfish Diseases

• Infection with haematopoietic necrosis virus (IHN): Australia in wild juvenile redfin perch (Perca fluviatilis).
  Infection with Aphanomyces invadans (EUS): Australia in wild yellow bream (Acanthopagrus australis); Bangladesh in catla (Catla catla) and rui (Labeo rohita); India in Channa spp. and mrigal carp (Cirrhinus mrigala).
• Infection with red seabream iridovirus (RSIV):  India in Asian seabass (Lates calcarifer)
• Viral encephalopathy and retinopathy (VER): Australia in farmed giant grouper (Epinephelus lanceolatus) and farmed pot bellied seahorse (Hippocampus abdominalis); Chinese Taipei in hybrid grouper (Epinephelus fuscoguttatus x E. lanceolatus).
• Grouper iridoviral disease (GIV):  Chinese Taipei in hybrid grouper and blackhead seabream (Acanthopagrus schlegelii).
• Carp edema virus (CEV): India in koi carp (Cyprinus carpio).
• Infection with Tilapia lake virus (TILV):  India in tilapia (Oreochromis niloticus and O. mossambicus); Philippines in tilapia (Oreochromis spp.).

Molluscan Diseases

• Infection with abalone herpesvirus:  Australia in wild green lipped abalone (Haliotis laevigata) and black lipped abalone (H. rubra).

Crustacean Diseases

• Infection with white spot syndrome virus (WSSV): Chinese Taipei in whiteleg shrimp (Penaeus vannamei); India in P. vannamei; Philippines in PLs, juveniles, grow-out and broodstock of P. vannamei, eggs, PL and broodstock of P. monodon, grow-out of Macrobrachium rosenbergii and broodstock of mudcrab (Scylla serrata).
• Infection with infectious hypodermal and haematopoietic necrosis virus (IHHNV): India in black tiger shrimp (P. monodon); Philippines in grow-out of P. vannamei and eggs, PL, grow-out and broodstock of P. monodon.
• Acute hepatopancreatic necrosis disease (AHPND): Philippines in PL and grow-out of P. vannamei and  nauplii and broodstock of P. monodon.
  Hepatopancreatic microsporidiosis caused by Enterocytozoon hepatopenaei (EHP):  India in P. vannamei; Philippines in PLs of P. vannamei and P. monodon.

Amphibian Diseases

• Infection with Batrachochytrium dendrobatidis:  Australia in Adelotus brevis, Limnodynastes peronii, Limnodynastes dumerilii, Litoria caerulea, Litoria ewingii, Litoria peronii, Litoria phyllochroa, Litoria quiritatus, Litoria verreauxii, Platyplectrum ornatum, Pseudophryne bibronii and Rhinella marina.

Other Diseases

• Bangladesh reported infection with Streptococcus agalactiae in tilapia (Oreochromis niloticus) and climbing perch (Anabas testudineus), and infection with Aeromonas sp. in climbing perch and shing catfish (Heteropnuestes fossilis).
• India reported infectious spleen and kidney necrosis virus (ISKNV) in angel fish (Pterophylum scalare).

E.M. Leaño
Senior Programme Officer
Aquatic Animal Health Programme