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Communication

Impact of COVID-19 Mitigation Measures on Mosquito-Borne Diseases in 2020 in Queensland, Australia

1
Communicable Diseases Branch, Department of Health, Queensland Government, Herston, Brisbane, QLD 4006, Australia
2
Metro North Public Health Unit, Queensland Health, Windsor, Brisbane, QLD 4030, Australia
3
Field Services, Brisbane City Council, Eagle Farm, Brisbane, QLD 4009, Australia
4
Public Health Virology, Forensic and Scientific Services, Department of Health, Queensland Government, Coopers Plains, Brisbane, QLD 4108, Australia
*
Authors to whom correspondence should be addressed.
Academic Editor: Van-Mai Cao-Lormeau
Received: 26 May 2021 / Revised: 10 June 2021 / Accepted: 11 June 2021 / Published: 16 June 2021
(This article belongs to the Special Issue Vector-Borne Diseases in a COVID-19 Redesigned World)
We describe the impact of COVID-19 mitigation measures on mosquito-borne diseases in Queensland, Australia, during the first half of 2020. Implementation of restrictions coincided with an atypical late season outbreak of Ross River virus (RRV) characterized by a peak in notifications in April (1173) and May (955) which were greater than 3-fold the mean observed for the previous four years. We propose that limitations on human movement likely resulted in the majority of RRV infections being acquired at or near the place of residence, and that an increase in outdoor activities, such as gardening and bushwalking in the local household vicinity, increased risk of exposure to RRV-infected mosquitoes. In contrast, the precipitous decline in international passenger flights led to a reduction in the number of imported dengue and malaria cases of over 70% and 60%, respectively, compared with the previous five years. This substantial reduction in flights also reduced a risk pathway for importation of exotic mosquitoes, but the risk posed by importation via sea cargo was not affected. Overall, the emergence of COVID-19 has had a varied impact on mosquito-borne disease epidemiology in Queensland, but the need for mosquito surveillance and control, together with encouragement of personal protective measures, remains unchanged. View Full-Text
Keywords: COVID-19; mosquito; arbovirus; Ross River virus; transmission; Australia COVID-19; mosquito; arbovirus; Ross River virus; transmission; Australia
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MDPI and ACS Style

Jansen, C.C.; Darbro, J.M.; Birrell, F.A.; Shivas, M.A.; van den Hurk, A.F. Impact of COVID-19 Mitigation Measures on Mosquito-Borne Diseases in 2020 in Queensland, Australia. Viruses 2021, 13, 1150. https://0-doi-org.brum.beds.ac.uk/10.3390/v13061150

AMA Style

Jansen CC, Darbro JM, Birrell FA, Shivas MA, van den Hurk AF. Impact of COVID-19 Mitigation Measures on Mosquito-Borne Diseases in 2020 in Queensland, Australia. Viruses. 2021; 13(6):1150. https://0-doi-org.brum.beds.ac.uk/10.3390/v13061150

Chicago/Turabian Style

Jansen, Cassie C., Jonathan M. Darbro, Frances A. Birrell, Martin A. Shivas, and Andrew F. van den Hurk 2021. "Impact of COVID-19 Mitigation Measures on Mosquito-Borne Diseases in 2020 in Queensland, Australia" Viruses 13, no. 6: 1150. https://0-doi-org.brum.beds.ac.uk/10.3390/v13061150

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