Volume 30, Number 12—December 2024
Dispatch
Incursion of Novel Eurasian Low Pathogenicity Avian Influenza H5 Virus, Australia, 2023
, Victoria Grillo, Silvia Ban de Gouvea Pedroso, Natasha D. Brohier, Ivano Broz, Charlotte Burgoyne, Allison Crawley, Kelly Davies, Mark Ford, Joanne Grimsey, Nina Y.H. Kung, Jasmina M. Luczo, Cornelius Matereke, Peter T. Mee, Patrick Mileto, Matthew J. Neave, Megan Poon, Vittoria Stevens, Guy Weerasinghe, Sara Zufan, Ian G. Barr, Marcel Klaassen, Andrew C. Breed, and Frank Y.K. Wong
Table
Genome constellations for each virus sequenced in the study of an incursion of novel Eurasian low pathogenicity avian influenza H5 virus, Australia, 2023*
| Virus designation | Date | PB2 | PB1 | PA | HA | NP | NA | M | NS |
|---|---|---|---|---|---|---|---|---|---|
| A/chestnut teal/Victoria/23-01686-0034/2023 (H5N3) | 2023 Apr 26 | Aus | Aus (B) | Aus | H5–EUR-novel | Aus | N3–Aus | Aus (A) | A–Aus |
| A/Pacific black duck/Victoria/23-01686-0039/2023 (H5N3) | 2023 Apr 26 | Aus | Aus (A) | Aus | H5–EUR-novel | Aus | N3–Aus | Aus (A) | B–Aus |
| A/gray teal/Victoria/23-01688-0045/2023 (mixed)† | 2023 Apr 26 | Aus | Aus (A) | Aus | H5–EUR-novel | Aus | N3–Aus/ N7–Aus | Aus (A) | B–Aus |
| A/Pacific Black Duck/Victoria/17363/2023 (H5N3) | 2023 Jun 22 | Aus | Aus (A) | Aus | H5–EUR-novel | Aus‡ | N3–Aus | Aus (A) | A–Aus |
| A/wild waterbird/Queensland/ P23–02457–48/2023 (H5N3) | 2023 Jun 23 | Aus | Aus (C) | Aus | H5–EUR-novel | Aus | N3–Aus | Aus (B) | A–Aus |
| A/wild waterbird/Queensland/ P23–02457–51/2023 (H5N3) | 2023 Jun 23 | Aus | Aus (C) | Aus | H5–EUR-novel | Aus | N3–Aus | Aus (B) | A–Aus |
| A/wild waterbird/South Australia/23–80999145–13/2023 (H5N9) | 2023 Jul 31 | Aus | Aus (C) | Aus | H5–EUR-novel | Aus‡ | N9–Aus | Aus (A) | B–Aus |
| A/Radjah Shelduck/Northern Territory/ 20231282–03/2023 (H5N1) | 2023 Oct 30 | ND | ND | ND | H5–EUR-novel | Aus‡ | N1–Aus | Aus (A) | A–Aus |
*In cases where viruses fell into different Australian lineages we added an indicatory letter in parentheses to show the different lineages. In the case of NS, whether the virus fell into the A or B allele is indicated before the lineage name. (e.g., B–Aus for an Australian lineage in the B allele). Similarly, for the neuraminidase subtype information is incorporated (e.g., N1–Aus for an Australian lineage in the N1). Aus, established Australian clade; EUR-novel, novel incursion from Eurasian lineage; HA, hemagglutinin; M, matrix protein; ND, no sequence data available; NA, neuraminidase; NP, nucleoprotein; NS, nonstructural protein; PA, polymerase acidic; PB, polymerase basic. †A/gray teal/Victoria/23-01688-0045/2023 comprised H5 and H10, and N3 and N7. ‡Cases where viruses fell into the same Australian lineage but were not sister to each other.