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 third quarter of 2022 and the original and updated reports can be accessed at the QAAD page.   The following diseases were reported:

Finfish Diseases

• Infection with Aphanomyces invadans (EUS): Australia in wild male adult mullet (Mugil cephalus); Bangladesh in rohu (Labeo rohita), catla (L. catla) and mrigal (Cirrhinus mrigala); and, Chinese Taipei in largemouth bass (Micropterus salmoides) and ayu (Plecoglossus altivelis).
• Infection with red seabream iridovirus (RSIV): Chinese Taipei in Asian seabass (Lates calcarifer), hybrid grouper (Epinephelus fuscoguttatus x E. lanceolatus) and jade perch (Scortum barcoo); and, India in freshwater angelfish (Pterophyllum scalare) and Ram cichlid (Mikrogeophagus remirezi).
• Viral encephalopathy and retinopathy (VER): Australia in captive juvenile Queensland grouper (Epinephelus lanceolatus); and, Chinese Taipei in hybrid grouper (Epinephelus fuscoguttatus x E. lanceolatus).
• Infection with Tilapia lake virus (TILV): India in tilapia (Oreochromis niloticus); and, the Philippines in tilapia fingerlings (Oreochromis spp.).
• Enteric septicaemia of catfish: Vietnam in pangas catfish (Pangasius microneme and P. hypophthalmus).

Molluscan Diseases

• Infection with Perkinsus olseni: India in wild mussel (Mytella strigata).

Crustacean Diseases

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

Amphibian Diseases

• Infection with Batrachochytrium dendrobatidis: Australia in various species of frogs including Crinia signifera, Limnodymastes peronii, Lim. tasmaniensis, Litoria caerulea, Lit. fallax, Lit. lesueuri, Lit. nasuta, Lit. nudidigitus, Lit. peronii, Lit. phyllochroa, Lit. verreauxii, Lit. wilcoxii, Lit. raniformis and Mixophyes iteratus.

Other Diseases

• Bangladesh reported Infection with Streptococcus agalactiae in Tilapia (O. niloticus), and Infection with Aeromonas spp. in climbing perch (Anabas testudinues), shing catfish (Heteropneustes fossilis), gulsha (Mystus cavasius) and pabda (Ompok pabda). Hong Kong SAR reported Infectious spleen and kidney necrosis virus (ISKNV) in speckled blue grouper (E. cyanopodus) and Sabah giant grouper (E. fuscoguttatus x E. lanceolatus)

E.M. Leaño, Senior Programme Officer, Health and Biosecurity