Country surveillance profile

Mosquito-borne disease in Australia, 2025-2026 data

Mosticare's data for Australia covers weekly case notifications for South Australia, mosquito and sentinel chicken surveillance for New South Wales and openly licensed mosquito species records nationwide. Data from National Notifiable Diseases Surveillance System, NT Health, Queensland Health, Victorian Department of Health and WA Department of Health is not included, because their terms do not allow Mosticare to republish it. In the 8 weeks from 30 August to 24 October 2026, South Australia recorded 23 notifications across 7 tracked mosquito-borne diseases, most of them dengue (9) and Ross River virus (9), according to SA Health. In the 2025-26 season in New South Wales, mosquito testing recorded 21 virus detections and sentinel chicken flocks recorded 3 seroconversions, according to NSW Health.

Last updated · 27 October 2026 · CC BY 4.0

Coverage

AreaIncludedNot included
Australia, nationalSpecies records · GBIF · latest 2026National Notifiable Diseases Surveillance System
Australian Capital TerritorySpecies records · GBIF · latest 2024none
New South WalesSentinel chickens · NSW Health · latest 18 April 2026Mosquito virus testing · NSW Health · latest 25 April 2026Mosquito trapping · NSW Health · latest 9 May 2026Species records · GBIF · latest 2026none
Northern TerritorySpecies records · GBIF · latest 2026NT Health
QueenslandSpecies records · GBIF · latest 2026Queensland Health
South AustraliaHuman case notifications · SA Health · latest 24 October 2026Species records · GBIF · latest 2026none
TasmaniaSpecies records · GBIF · latest 2026none
VictoriaSpecies records · GBIF · latest 2026Victorian Department of Health
Western AustraliaSpecies records · GBIF · latest 2026WA Department of Health

Not included

  • National Notifiable Diseases Surveillance System (Australian Centre for Disease Control). National and state notification counts, including Ross River, Barmah Forest and Murray Valley encephalitis. Not shown: the terms forbid commercial use and republication in another format. Terms
  • NT Health, Medical Entomology and the Northern Territory Disease Control Bulletin. Northern Territory arbovirus surveillance. Not shown: the terms forbid reuse beyond non-profit copying. Terms
  • Queensland Health, notifiable conditions and mosquito-borne disease surveillance. Weekly Queensland notification totals. Not shown: a reformatted, combined dataset is a derivative, which CC BY-ND does not allow. Terms
  • Victorian Department of Health, mosquito surveillance and infectious disease reports. Victorian trapping and notified cases. Not shown: the site terms forbid reuse; the Data.Vic CC BY entry links a file that no longer exists. Terms
  • WA Department of Health, Medical Entomology arbovirus surveillance. Quarterly Western Australian arbovirus reports and sentinel chicken flocks. Not shown: reuse needs written permission. Terms

South Australia notifications

Weekly Report - Last 8 Weeks, reporting period 2026-08-30 to 2026-10-24, SA Health, Communicable Disease Control Branch. Weekly counts of notifications to the South Australian Notifiable Condition System, by week ending. SA Health extracts them weekly and states they are subject to change, so the newest report replaces earlier figures for the same week. The report does not say whether a case was acquired locally or overseas and does not name a vector. South Australia only. Source: SA Health, CC BY 4.0.
Week endingBarmah Forest virusChikungunyaDengueJapanese encephalitisMalariaMurray Valley encephalitisRoss River virus
5 September 20260100000
12 September 20260000000
19 September 20260010001
26 September 20260020000
3 October 20260010101
10 October 20260010103
17 October 20260020102
24 October 20261020002
8 weeks1190309

New South Wales mosquito surveillance, 2025-26 season

A mosquito virus detection means virus was found in at least one mosquito of a trapped sample; a sentinel chicken positive means one or more chickens in a flock tested positive for antibodies to that virus for the first time. Neither is a human case, and high mosquito numbers do not always mean more human cases. Site coordinates are the mid-point of a broader location, not the exact trap. Trapping runs from around October to April. New South Wales only; seasons here run 1 July to 30 June. Source: NSW Health, CC BY 3.0 AU.
Weeks reported30, weeks ending 18 October 2025 to 9 May 2026
Mosquito trap sites44
Sentinel chicken flocks14
Mosquito virus detections21: Stratford 9, Ross River 5, Kokobera 4, Barmah Forest 2, Edge Hill 1
Sentinel seroconversionsJapanese encephalitis 2, Murray Valley encephalitis 0, Kunjin 1
Trap site weeks by mosquito countNo collection 489, Low (<50) 455, Medium (50-100) 139, High (101-1,000) 114, Very high (1,001-10,000) 8, Extreme (>10,000) 0
2026-27 seasonNo samples reported yet

Detections

Week endingSiteLocal areaStreamVirusCount
25 April 2026Northern BeachesNorthern BeachesMosquito virusRoss River1
25 April 2026Northern BeachesNorthern BeachesMosquito virusStratford1
18 April 2026Central CoastCentral CoastMosquito virusBarmah Forest1
18 April 2026EarlwoodCanterbury-BankstownMosquito virusStratford1
11 April 2026Northern BeachesNorthern BeachesMosquito virusStratford1
11 April 2026WilcanniaCentral DarlingMosquito virusRoss River1
4 April 2026Northern BeachesNorthern BeachesMosquito virusStratford1
28 March 2026BlacktownBlacktownMosquito virusRoss River1
28 March 2026Northern BeachesNorthern BeachesMosquito virusStratford1
28 March 2026ParramattaParramattaMosquito virusRoss River1
21 March 2026PenrithPenrithMosquito virusRoss River1
21 March 2026West WyalongMurrumbidgeeMosquito virusKokobera1
14 March 2026EarlwoodCanterbury-BankstownMosquito virusStratford1
7 March 2026EarlwoodCanterbury-BankstownMosquito virusStratford1
7 March 2026KempseyKempseyMosquito virusEdge Hill1
28 February 2026HayHaySentinel chickenJapanese encephalitis1
28 February 2026TweedTweedMosquito virusStratford1
21 February 2026LeetonLeetonMosquito virusKokobera2
14 February 2026LeetonLeetonMosquito virusKokobera1
14 February 2026TweedTweedMosquito virusStratford1
17 January 2026GriffithGriffithMosquito virusBarmah Forest1
3 January 2026GoulburnGoulburn MulwareeSentinel chickenJapanese encephalitis1
22 November 2025CowraCowraSentinel chickenKunjin1

Mosquito species records

Presence-only and effort-biased: points show where mosquitoes were recorded, not where they are absent or how abundant they are. Species-level records only. 8,521 CC BY-NC records were excluded at retrieval, so a missing species is 'no openly licensed record', not confirmed absence. A specimen published by two datasets counts once: a compilation, sequence repository or mirror counts only the records beyond what the first-hand publisher holds for the same species, point and year, so the counts are a lower bound on distinct records. Records stacked on a country or state centroid, a placeholder rather than a place, are dropped. Coordinates are rounded to 0.01 degrees. States are assigned from Natural Earth 1:50m polygons; a record off the generalised coastline (within 0.25 degrees) or on an island (within 2.0 degrees) is placed in the nearest state, and a record whose stated coordinate uncertainty reaches past its state's boundary counts for Australia only. Source: GBIF, CC0 1.0 and CC BY 4.0.
AreaRecordsSpeciesDatasetsYearsMost recorded
Australia, all24,165247321889 to 2026Culex annulirostris 2,049Anopheles annulipes 1,449Aedes notoscriptus 1,359
Australian Capital Territory3873161942 to 2024Aedes notoscriptus 80Aedes rubrithorax 45Anopheles annulipes 34
New South Wales3,72889181889 to 2026Aedes rubrithorax 600Culex quinquefasciatus 361Aedes notoscriptus 311
Northern Territory2,74494121913 to 2026Culex annulirostris 349Aedes vigilax 340Aedes notoscriptus 301
Queensland11,561193171889 to 2026Culex annulirostris 1,186Aedes spinosus 510Aedes notoscriptus 473
South Australia1853291921 to 2026Aedes camptorhynchus 23Aedes calcariae 17Aedes notoscriptus 17
Tasmania55635101910 to 2026Anopheles annulipes 169Culex fergusoni 59Culex globocoxitus 42
Victoria3,08685131919 to 2026Aedes vittiger 165Culex australicus 160Culiseta hilli 159
Western Australia1,45577151921 to 2026Anopheles annulipes 257Culex annulirostris 190Aedes vigilax 109

Most recorded species

SpeciesRecordsWhere recordedYears
Culex annulirostris2,049Queensland 1,186, Northern Territory 349, Western Australia 190, New South Wales 141, Victoria 129, Australian Capital Territory 7, South Australia 3, uncertain location 441913 to 2024
Anopheles annulipes1,449Queensland 448, New South Wales 281, Western Australia 257, Tasmania 169, Victoria 135, Northern Territory 111, Australian Capital Territory 34, South Australia 4, uncertain location 101899 to 2026
Aedes notoscriptus1,359Queensland 473, New South Wales 311, Northern Territory 301, Victoria 125, Australian Capital Territory 80, Western Australia 35, South Australia 17, Tasmania 11, uncertain location 61919 to 2026
Aedes vigilax1,139Queensland 418, Northern Territory 340, New South Wales 213, Western Australia 109, Victoria 42, South Australia 15, Tasmania 1, uncertain location 11910 to 2026
Culex quinquefasciatus993New South Wales 361, Queensland 227, Victoria 133, Western Australia 108, Northern Territory 77, Australian Capital Territory 12, South Australia 6, uncertain location 691922 to 2026
Aedes rubrithorax944New South Wales 600, Queensland 205, Australian Capital Territory 45, Victoria 43, Tasmania 30, South Australia 16, uncertain location 51914 to 2024
Culex australicus738Victoria 160, Queensland 148, New South Wales 105, Western Australia 61, Tasmania 29, Australian Capital Territory 15, Northern Territory 6, South Australia 6, uncertain location 2081927 to 2022
Aedes spinosus603Queensland 510, Western Australia 35, New South Wales 31, Northern Territory 24, South Australia 2, Victoria 11942 to 1991
Aedes aegypti465Queensland 410, Northern Territory 35, New South Wales 12, Australian Capital Territory 1, Victoria 1, Western Australia 1, uncertain location 51915 to 2017
Aedes alboannulatus465New South Wales 183, Victoria 122, Western Australia 65, Queensland 57, Australian Capital Territory 17, South Australia 13, Tasmania 5, Northern Territory 1, uncertain location 21917 to 2026

Data freshness

SourceCoversLatest dataRetrieved
SA HealthSouth Australia24 October 202627 October 2026
NSW HealthNew South Wales9 May 20262026-27 season: no samples reported yet27 October 2026
GBIFAll of Australia202627 October 2026

About surveillance in Australia

Australia's states and territories run their own mosquito-borne disease surveillance, and national notifications are collected by the National Notifiable Diseases Surveillance System. Mosticare republishes only the sources whose terms allow it: South Australia's weekly notifications (SA Health, CC BY 4.0), New South Wales mosquito and sentinel chicken surveillance (NSW Ministry of Health, CC BY 3.0 AU) and openly licensed GBIF species records. National notifications and the Queensland, Victorian, Western Australian and Northern Territory health departments' data are not included.

Frequently asked questions

Which mosquito-borne disease data does Mosticare publish for Australia?

Mosticare's data for Australia covers weekly case notifications for South Australia, mosquito and sentinel chicken surveillance for New South Wales and openly licensed mosquito species records nationwide. Data from National Notifiable Diseases Surveillance System, NT Health, Queensland Health, Victorian Department of Health and WA Department of Health is not included, because their terms do not allow Mosticare to republish it.

How many mosquito-borne disease notifications did South Australia report in the latest 8 weeks?

In the 8 weeks from 30 August to 24 October 2026, SA Health recorded: dengue 9, Ross River virus 9, malaria 3, Barmah Forest virus 1, chikungunya 1, Japanese encephalitis 0 and Murray Valley encephalitis 0. Counts are by week of notification, locally and overseas acquired cases are combined, and the counts are subject to change.

What did New South Wales mosquito surveillance find in the 2025-26 season?

Across 30 reporting weeks (weeks ending 18 October 2025 to 9 May 2026), New South Wales monitored 44 mosquito trap sites and 14 sentinel chicken flocks. Mosquito testing recorded 21 virus detections: Stratford 9, Ross River 5, Kokobera 4, Barmah Forest 2 and Edge Hill 1. Sentinel flocks recorded seroconversions to Japanese encephalitis 2, Murray Valley encephalitis 0 and Kunjin 1. Neither measure is a human case. The 2026-27 season has no samples reported yet.

Which mosquito species are recorded most often in Australia?

In openly licensed GBIF records, the most recorded species are Culex annulirostris (2,049 records), Anopheles annulipes (1,449), Aedes notoscriptus (1,359), Aedes vigilax (1,139) and Culex quinquefasciatus (993), out of 24,165 records of 247 species. These records show where mosquitoes were recorded, not where they are absent or how abundant they are.

Are these official Australian health alerts?

No. Mosticare is not a public health authority, and nothing on this page is an official alert. Each figure is republished from the named source with its licence and attribution; for official advice, see your state or territory health department.

Sources

  • SA Health, Weekly Report - Last 8 Weeks (notifiable conditions, South Australia)Source: SA Health, Weekly Report - Last 8 Weeks, CC BY 4.0. Extracted and reformatted by Mosticare. CC BY 4.0
  • NSW Arbovirus Surveillance and Mosquito Monitoring Program, arbovirus data (Data.NSW)© State of New South Wales NSW Ministry of Health. For current information go to www.health.nsw.gov.au. Arbovirus data, Data.NSW, CC BY 3.0 AU. Reformatted by Mosticare. CC BY 3.0 AU
  • GBIF occurrence records, mosquitoes (Culicidae) in Australia, CC0 1.0 and CC BY 4.0 onlyGBIF.org occurrence data. Dataset publishers are credited per dataset. CC0 1.0 and CC BY 4.0
    32 GBIF datasets
    • Walter Reed Biosystematics Unit, Smithsonian Institution. Mosquito Occurrence Dataset. Occurrence dataset https://doi.org/10.15468/tw2y9b accessed via GBIF.org on 2026-10-27. CC BY 4.0, 8,959 records
    • Queensland Museum (2026). Queensland Museum provider for OZCAM. Occurrence dataset https://doi.org/10.15468/lotsye accessed via GBIF.org on 2026-10-27. CC BY 4.0, 6,897 records
    • Commonwealth Scientific and Industrial Research Organisation (2026). Australian National Insect Collection. Occurrence dataset https://doi.org/10.15468/s1hm8r accessed via GBIF.org on 2026-10-27. CC BY 4.0, 2,299 records
    • Museums Victoria (2026). Museums Victoria provider for OZCAM. Occurrence dataset https://doi.org/10.15468/lp1ctu accessed via GBIF.org on 2026-10-27. CC0 1.0, 1,423 records
    • European Bioinformatics Institute (EMBL-EBI), GBIF Helpdesk (2026). INSDC Sequences. Version 1.190. European Nucleotide Archive (EMBL-EBI). Occurrence dataset https://doi.org/10.15468/sbmztx accessed via GBIF.org on 2026-10-27. CC BY 4.0, 1,073 records
    • iNaturalist contributors, iNaturalist (2026). iNaturalist Research-grade Observations. iNaturalist.org. Occurrence dataset https://doi.org/10.15468/ab3s5x accessed via GBIF.org on 2026-10-27. CC BY 4.0, CC0 1.0, 980 records
    • The International Barcode of Life Consortium (2026). International Barcode of Life project (iBOL). Occurrence dataset https://doi.org/10.15468/inygc6 accessed via GBIF.org on 2026-10-27. CC BY 4.0, 662 records
    • NSW Department of planning, industry and environment (2026). NSW BioNet Atlas. Occurrence dataset https://doi.org/10.15468/14jd9g accessed via GBIF.org on 2026-10-27. CC BY 4.0, 383 records
    • Atlas of Living Australia (2026). Dandjoo. Occurrence dataset https://doi.org/10.15468/4vq6up accessed via GBIF.org on 2026-10-27. CC BY 4.0, 361 records
    • Australian Museum (2026). Australian Museum provider for OZCAM. Occurrence dataset https://doi.org/10.15468/e7susi accessed via GBIF.org on 2026-10-27. CC BY 4.0, 305 records
    • Kraemer M U G, Sinka M E, Duda K A, Mylne A, Shearer F M, Brady O J, Messina J P, Barker C M, Moore C G, Carvalho R G, Coelho G E, Van Bortel W, Hendrickx G, Schaffner F, Wint G R W, Elyazar I R F, Teng H, Hay S I, Page R D M. Global compendium of Aedes aegypti occurrence. Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow. Occurrence dataset https://doi.org/10.15468/bgmqmr accessed via GBIF.org on 2026-10-27. CC0 1.0, 290 records
    • European Molecular Biology Laboratory Australia (2019). European Molecular Biology Laboratory Australian Mirror. Occurrence dataset https://doi.org/10.15468/ypsvix accessed via GBIF.org on 2026-10-27. CC BY 4.0, 212 records
    • Victorian Department of Energy, Environment and Climate Action (2026). Victorian Biodiversity Atlas. Occurrence dataset https://doi.org/10.15468/khlfs3 accessed via GBIF.org on 2026-10-27. CC BY 4.0, 89 records
    • Ciliberti P, Creuwels J (2026). Naturalis Biodiversity Center (NL) - Diptera. Naturalis Biodiversity Center. Occurrence dataset https://doi.org/10.15468/cl6p3l accessed via GBIF.org on 2026-10-27. CC0 1.0, 40 records
    • NatureMap (2019). Carnarvon Basin Wetland Invertebrate Survey. Occurrence dataset https://doi.org/10.15468/gpgvgr accessed via GBIF.org on 2026-10-27. CC BY 4.0, 38 records
    • NatureMap (2019). Carnarvon Basin (Aquatic Projects) - Invertebrates. Occurrence dataset https://doi.org/10.15468/6vptrw accessed via GBIF.org on 2026-10-27. CC BY 4.0, 38 records
    • NSW Department of Primary Industries (2026). NSW DPI Biosecurity Collections. Occurrence dataset https://doi.org/10.15468/7k7b25 accessed via GBIF.org on 2026-10-27. CC BY 4.0, 30 records
    • Data Management A (2026). ALA species sightings and OzAtlas. Atlas of Living Australia. Occurrence dataset https://doi.org/10.15468/jayxmn accessed via GBIF.org on 2026-10-27. CC BY 4.0, 26 records
    • NatureMapr (2026). NatureMapr. Occurrence dataset https://doi.org/10.15468/uye32x accessed via GBIF.org on 2026-10-27. CC BY 4.0, 24 records
    • Murray-Darling Basin Authority (2019). MDFRC macroinvertebrate survey. Occurrence dataset https://doi.org/10.15468/paioao accessed via GBIF.org on 2026-10-27. CC BY 4.0, 8 records
    • Kraemer M U G, Sinka M E, Duda K A, Mylne A, Shearer F M, Brady O J, Messina J P, Barker C M, Moore C G, Carvalho R G, Coelho G E, Van Bortel W, Hendrickx G, Schaffner F, Wint G R W, Elyazar I R F, Teng H, Hay S I, Page R D M. Global compendium of Aedes albopictus occurrence. Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow. Occurrence dataset https://doi.org/10.15468/7apj8n accessed via GBIF.org on 2026-10-27. CC0 1.0, 5 records
    • Kelly T, Cooyou E, Murphy A, Cooyou J, Lewis Y, Barnes P, Andrews J, Brown J, Gudge S, Suominen S, Provoost P, Gillard E, Douvere F, Appeltans W (2026). UNESCO eDNA expedition in Ningaloo Coast (Australia): May 2023. Version 2.1. OBIS Secretariat. Occurrence dataset https://doi.org/10.25607/290ncx accessed via GBIF.org on 2026-10-27. CC0 1.0, 5 records
    • Tasmanian Museum and Art Gallery (2026). Tasmanian Museum and Art Gallery provider for OZCAM. Occurrence dataset https://doi.org/10.15468/ijp8p9 accessed via GBIF.org on 2026-10-27. CC BY 4.0, 4 records
    • Atlas of Living Australia (2024). Kangaroo Island Insect Collection. Occurrence dataset https://doi.org/10.15468/rhwnkz accessed via GBIF.org on 2026-10-27. CC BY 4.0, 3 records
    • Grinter C, Fong J (2026). CAS Entomology (ENT). Version 6.389. California Academy of Sciences. Occurrence dataset https://doi.org/10.15468/3ibpmo accessed via GBIF.org on 2026-10-27. CC0 1.0, 2 records
    • Wild A (2026). University of Texas, Biodiversity Center, Entomology Collection (UTIC). Version 1.338. University of Texas at Austin, Biodiversity Collections. Occurrence dataset https://doi.org/10.15468/sanyq7 accessed via GBIF.org on 2026-10-27. CC0 1.0, 2 records
    • South Australian Museum (2025). South Australian Museum Adelaide provider for OZCAM. Occurrence dataset https://doi.org/10.15468/wz4rrh accessed via GBIF.org on 2026-10-27. CC BY 4.0, 2 records
    • North Sydney Council (2026). Wildlife Watch NSC. Occurrence dataset https://doi.org/10.15468/4x6bze accessed via GBIF.org on 2026-10-27. CC BY 4.0, 1 record
    • Hubley B (2024). Royal Ontario Museum - Entomology Collection. Version 2.0. Royal Ontario Museum. Occurrence dataset https://doi.org/10.5886/p69k4g accessed via GBIF.org on 2026-10-27. CC BY 4.0, 1 record
    • Western Australian Museum (2024). Western Australian Museum provider for OZCAM. Occurrence dataset https://doi.org/10.15468/5qt0dm accessed via GBIF.org on 2026-10-27. CC BY 4.0, 1 record
    • Orrell T, Informatics and Data Science Center - Digital Stewardship (2026). NMNH Extant Specimen Records (USNM, US). Version 1.113. National Museum of Natural History, Smithsonian Institution. Occurrence dataset https://doi.org/10.15468/hnhrg3 accessed via GBIF.org on 2026-10-27. CC0 1.0, 1 record
    • Gilligan J, Wood C, DiBattista J, Jain F, Suominen S, Provoost P, Gillard E, Douvere F, Appeltans W (2026). UNESCO eDNA expedition in Lord Howe Island Group (Australia): January 2023. Version 1.1. OBIS Secretariat. Occurrence dataset https://doi.org/10.15468/mpevs2 accessed via GBIF.org on 2026-10-27. CC0 1.0, 1 record
  • Natural Earth 1:50m admin-1 states and provinces (Australia)Made with Natural Earth. Public domain

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About this data

Mosticare aggregates and re-publishes vector-borne disease surveillance from ECDC, EFSA, national and state ministries of health, and GBIF. Mosticare is an aggregator, not a primary surveillance authority, every figure on this page cites the originating source and is independently verifiable. This is a partial aggregation; for the complete EU/EEA totals, ECDC is the primary source.

The incidence records and weekly notification counts are published as free, machine-readable feeds under CC BY 4.0, the point-in-time incidence snapshot at /threat-map/feed.json (JSON Schema) and the multi-year trends at /threat-map/feed/trends.json (JSON Schema). The mosquito surveillance and species records on this page are not in the feeds. See the Global Mosquito Threat Map and the full data room.