Yellow Fever News and Research

RSS

Yellow fever virus, a flavivirus, is transmitted to humans through the bite of infected mosquitoes. Illness ranges in severity from a self-limited febrile illness to severe hepatitis and hemorrhagic fever. Yellow fever disease is diagnosed based on symptoms, physical findings, laboratory testing, and the possibility of exposure to infected mosquitoes. There is no specific treatment for yellow fever; care is based on symptoms. Steps to prevent yellow fever include use of insect repellent, protective clothing, and vaccination. Yellow fever occurs in tropical regions of Africa and in parts of South America. Yellow fever is a very rare cause of illness in U.S. travelers. The last epidemic of yellow fever in North America occurred in New Orleans in 1905.

Asaia Bacteria Accelerate Mosquito Larvae Growth

Mosquito larvae grow faster if they're exposed to particular bacteria, according to a new study that could help global health programmes.

5 Nov 2024

New Research Reveals Infrared Radiation as a Mosquito Host-Seeking Trigger

While a mosquito bite is often no more than a temporary bother, in many parts of the world it can be scary. One mosquito species, Aedes aegypti, spreads the viruses that cause over 100,000,000 cases of dengue, yellow fever, Zika, and other diseases every year. Another, Anopheles gambiae, spreads the parasite that causes malaria. The World Health Organization estimates that malaria alone causes more than 400,000 deaths every year. Indeed, their capacity to transmit disease has earned mosquitoes the title of deadliest animal.

23 Aug 2024

Revolutionary Bacterial Engineering Reduces Mosquito Attraction in Mice

Genetically engineered human skin bacteria can make mice less attractive to mosquitoes for 11 days. Mosquitoes transmit a host of deadly diseases, including malaria, West Nile, dengue, yellow fever, and Zika.

1 Aug 2024

Researchers Uncover the FACT-ETS-1 Antiviral Response Pathway

By focusing on a poxvirus protein, a team led by UT Southwestern Medical Center scientists has discovered an antiviral immune pathway that broadly fights a wide variety of viruses.

4 Apr 2024

Zika's Enzyme Cascade Holds the Key to Viral Replication

Viruses operate with limited genetic material and a sparse protein repertoire, requiring efficient utilization of their components. The Zika virus serves as an illustrative case, producing only 10 proteins.

11 Dec 2023

Researchers Develop New Way to Genetically Suppress Malaria-Carrying Mosquitoes

Malaria remains one of the world's deadliest diseases. Each year malaria infections result in hundreds of thousands of deaths, with the majority of fatalities occurring in children under five.

6 Jul 2023

Dengue Viruses Subvert Mosquito Biology to Tamp Down Human Immune Responses

The saliva of mosquitoes infected with dengue viruses contains a substance that thwarts the human immune system and makes it easier for people to become infected with these potentially deadly viruses, new research reveals.

5 Apr 2023

Single monoclonal antibody infusion can strengthen the body's fight against yellow fever

New research from Oregon Health & Science University and collaborators indicates lab-made antibodies may be able to cure people infected with yellow fever, a virus for which there is no treatment.

30 Mar 2023

Novel web-based tool deoptimizes genetic sequences based on different codon usage

A new software tool developed by Texas Biomedical Research Institute and collaborators can help scientists and vaccine developers quickly edit genetic blueprints of pathogens to make them less harmful.

16 Mar 2023

Researchers pioneer a new approach to study mosquito's DNA

When it comes to DNA, one pesky mosquito turns out to be a rebel among species.

10 Feb 2023

New platform to study the feeding behavior of mosquitoes

If watching animals feast on human blood for 30-plus hours isn't your idea of fun, don't worry. The robot can do it.

10 Feb 2023

Chemical compounds play a pivotal role in host selection behaviors

A team of researchers headed by UC Riverside found that the combination of carbon dioxide and two chemicals—2-ketoglutaric and lactic acids—evokes a scent that kindles the mosquito to trace and land on its victim.

22 Sep 2022

Releasing Wolbachia-infected mosquitoes to protect the global community from dengue

Dengue is the most widespread mosquito-borne disease in the world, and to date, there are no medical treatments for people suffering from this disease.

21 Apr 2022

Researchers discover a key mechanism used by Zika virus to evade cell’s antiviral response

The world knows SARS-CoV-2 intimately now, but there are more than 200 virus species capable of infecting humans and causing disease.

19 Jan 2022

Genome editing tool used to render male mosquitoes infertile and slow disease spread

Mosquitos spread viruses that cause potentially deadly diseases such as Zika, dengue fever and yellow fever. New U.S. Army-funded research uses gene editing to render certain male mosquitoes infertile and slow the spread of these diseases.

24 Aug 2021

Researchers identify new therapeutic targets for flaviviruses

In a recent study, Australian scientists used an original approach to resolve the 3D structure of flaviviruses with an unprecedented level of detail, identifying small molecules known as 'pocket factors' as new therapeutic targets.

2 Jun 2021

Study on AEG12 mosquito protein could lead to therapeutics against deadly viruses

Researchers have found that AEG12, a mosquito protein, strongly suppresses the class of viruses causing dengue, yellow fever, Zika, and West Nile.

11 Mar 2021

Study shows how antibodies fight Zika virus

Zika outbreaks are still having lasting effects on children whose mothers were infected with the Zika virus during their pregnancy.

26 Feb 2021

New method to track how yellow fever mosquito moves through environment

The yellow fever mosquito (Aedes aegypti) is the main vector of deadly diseases like dengue fever, chikungunya, and the Zika virus, which result in hundreds of thousands of deaths worldwide each year.

25 Feb 2021

Scientists use genomics to track the outbreak of Yellow fever virus in São Paulo

Yellow fever virus is normally confined to the Amazon region, but the virus circulated in the Southeast of Brazil between 2016 and 2018, causing the worst epidemic and epizootic outbreaks there for decades. The Ministry of Health confirmed 2,251 cases of yellow fever in humans and 1,567 cases in monkeys in Brazil between December 2016 and June 2019.

6 Nov 2020