Related Experiment Video
Updated: May 7, 2026
06:02
Arbovirus Infections As Screening Tools for the Identification of Viral Immunomodulators and Host Antiviral Factors
Published on: September 13, 2018
6.8K
Arbovirus Transmission in Australia from 2002 to 2017
Elvina Viennet1,2, Francesca D Frentiu2, Emilie McKenna1,2
1Research and Development, Strategy and Growth, Australian Red Cross Lifeblood, Kelvin Grove, QLD 4059, Australia.
Biology
|July 26, 2024
Summary
This study mapped arbovirus (Ross River virus, Barmah Forest virus, dengue virus) spread in Australia, finding weather impacts transmission and blood donation rates. Public health interventions can be informed by these findings.
Area of Science:
- Public Health
- Epidemiology
- Environmental Science
Background:
- Arboviruses, including Ross River virus (RRV), Barmah Forest virus (BFV), and dengue virus (DENV), represent a significant global health concern.
- These viruses are common in Australia and have been linked to transfusion-transmitted infections, impacting blood supply safety.
- Understanding the geographic and temporal spread of arboviruses is crucial for public health preparedness.
Purpose of the Study:
- To analyze the spatiotemporal distribution of eight clinically significant arboviruses in Australia.
- To investigate the relationship between arbovirus incidence, weather variables, and blood donation numbers.
- To identify high-risk regions for arbovirus transmission and inform public health interventions.
Main Methods:
- Utilized Australian Department of Health data (2002-2017) for eight arboviruses.
- Employed Geographic Information System (GIS) mapping and space-time scan statistics for spatial and temporal analysis.
- Applied regression models to assess the influence of weather variables (rainfall, temperature, humidity) and their lags on arbovirus cases and blood donations.
Main Results:
- Identified significant spatiotemporal variations in arbovirus incidence across Australia.
- Average rainfall, minimum temperature, daily temperature variation, and relative humidity were key predictors of arbovirus transmission.
- Blood donation numbers were significantly associated with the incidence rates of all studied viruses, particularly dengue virus (DENV) in relation to local transmission.
Conclusions:
- This research provides the first fine-geographical level analysis of eight clinically relevant arboviruses in Australia.
- The findings highlight the impact of environmental factors on arbovirus transmission and blood donation rates.
- Results offer valuable insights for targeted public health interventions and blood supply management strategies in at-risk areas.
Related Concept Videos
01:10Retrovirus Life Cycles
43.1K
Retroviruses have a single-stranded RNA genome that undergoes a special form of replication. Once the retrovirus has entered the host cell, an enzyme called reverse transcriptase synthesizes double-stranded DNA from the retroviral RNA genome. This DNA copy of the genome is then integrated into the host’s genome inside the nucleus via an enzyme called integrase. Consequently, the retroviral genome is transcribed into RNA whenever the host’s genome is transcribed, allowing the...
43.1K
02:33Retroviruses
12.3K
Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...
12.3K
01:29Viruses of Archaea
714
Archaeal viruses play a crucial role in the ecosystems of extremophilic archaea, particularly those belonging to the phyla Euryarchaeota and Crenarchaeota. By shaping host evolution and facilitating gene transfer, these viruses influence microbial communities and contribute to genetic diversity in extreme environments. The archaea they infect thrive in acidic hot springs and hydrothermal vents characterized by high temperatures and low pH. Archaeal viruses exhibit remarkable structural...
714
01:25Arboviral Encephalitis
70
Arboviral encephalitis refers to brain inflammation caused by arthropod-borne viruses, particularly those transmitted through mosquito vectors. Among these, West Nile virus (WNV), a member of the Flaviviridae family, is a significant public health concern. WNV is an enveloped, positive-sense, single-stranded RNA virus. Human infection typically begins when an infected mosquito introduces the virus into the dermis during feeding. The primary transmission cycle involves birds as amplifying hosts...
70