Listed below are the reported aquatic animal diseases submitted by countries in the Asia-Pacific region, which covers the third quarter of 2023. The original and updated reports can be accessed from the QAAD page. 

Finfish Diseases

• Infection with Aphanomyces invadans (EUS): Bangladesh in catla (Catla catla), mrigal (Cirrhinus mrigala) and rohu (Labeo rohita); and India in snakehead (Channa marulius).
• Infection with red seabream iridovirus (RSIV): Chinese Taipei in hybrid grouper (Epinephelus fuscoguttatus x E. lanceolatus), seabass (Lates calcarifer) and silver seabream (Rhabdosagrus sarba); Hong Kong (reported as ISKNV) in hybrid grouper; and India (reported as ISKNV) in seabass.
• Infection with tilapia lake virus (TiLV): India in tilapia (Oreochromis niloticus), and Philippines in adult tilapia (Oreochromis sp.).
• Viral encephalopathy and retinopathy (VER): Australia in barramundi (L. calcarifer); and Chinese Taipei in hybrid grouper, giant grouper (E. lanceolatus) and Malabar grouper (E. malabaricus).
• Carp edema virus disease (CEV): India in koi carp (Cyprinus carpio).
• Enteric septicaemia of catfish (ESC): Vietnam in catfish (Pangasius macronema and P. hypophthalmus).

Molluscan Diseases

• Infection with abalone herpesvirus: Australia in blacklip abalone (Haliotis rubra)
• Infection with Perkinsus olseni: India in farmed mussel (Perna viridis and Mytella strigata).

Crustacean Diseases

• Infection with white spot syndrome virus (WSSV): Chinese Taipei in whiteleg shrimp (P. vannamei); India in black tiger shrimp (P. monodon) and P. vannamei; the Philippines in P. vannamei (PL, grow-out culture, and adult), P. monodon (PL and grow-out culture, broodstock), and mudcrab (Scylla serrata; broodstock); and Vietnam in P. vannamei.
• Infection with infectious hypodermal and haematopoietic necrosis virus (IHHNV): Australia in wild P. monodon; and, the Philippines in P. vannamei (grow out culture) and P. monodon (PL).
• Acute hepatopancreatic necrosis disease (AHPND): the Philippines in P. vannamei (PL and grow-out culture) and P. monodon (grow-out culture) and S. serrata; and Vietnam in P. vannamei.
• Infection with Infectious myonecrosis virus (IMNV): India in P. vannamei.
• Hepatopancreatic microsporidiosis caused by Enterocytozoon hepatopenaei (EHP): Chinese Taipei in P. vannamei; India in P. vannamei; and the Philippines in P. vannamei (PL and grow out culture) and P. indicus (grow-out culture).

Amphibian Diseases

• Infection with Batrachochytrium dendrobatidis: Australia in 90x Southern bell frog (Litoria raniformis), 10 x striped marsh frog (Limnodynastes peronii), and 10x spotted marsh frog (L. tasmaniensis). 

Other Diseases

• Bangladesh reported Infection with Streptococcus agalactiae in tilapia (O. niloticus), and Infection with Aeromonas spp. in shing catfish (Heteropneustes fossilis) and gulsha (Mystus cavasius). India reported Infection with tilapia parvovirus in O. niloticus.

E.M. Leaño
Senior Programme Officer
Health and Biosecurity