Yellow Fever News and Research

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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.

Researchers find mechanism behind susceptibility to viral infections

A team of researchers from the SingHealth Duke-NUS Academic Medicine Centre's Viral Research and Experimental Medicine Centre found that immune cells undergoing stress and an altered metabolism are the reasons why some individuals become sick from viral infections while others do not, when exposed to the same virus.

16 Jul 2019

Nitrogen-rich diet reduces mosquitoes' ability to transmit Zika

Feed mosquitoes more nitrogen when they're young, and the adults are less likely to transmit the Zika virus, University of Florida scientists say. Now, researchers want to know why, and they're determined to discover how the findings can help further their research into the dangerous virus.

24 Jun 2019

Texas Biomed awarded $2 million DOD grant to study promising Zika vaccine

The emerging Zika virus is a particular threat to pregnant women. The disease can be transmitted by the bite of an infected mosquito and is associated with devastating birth defects, like microcephaly. No approved vaccine against the virus exists.

3 Jun 2019

New study provides overview of potential risks of vaccinating breastfeeding women

In light of the continuing anti-vaccination movement, a provocative new article provides a comprehensive overview of the potential risks of vaccinating breastfeeding women.

11 Apr 2019

New study reveals five facts about allergies to vaccines

There is little chance you are actually allergic to vaccines and, if you are, your allergist can give it to you. Only one in 760,000 vaccinations will respond with anaphylaxis. For all other side effects, there are ways around any problem.

8 Apr 2019

Researchers discover how mosquitoes smell acidic volatiles in human sweat

Female mosquitoes are known to rely on an array of sensory information to find people to bite, picking up on carbon dioxide, body odor, heat, moisture, and visual cues.

29 Mar 2019

Global warming will raise risk of Mosquito borne diseases globally

Because of global warming, it is estimated that there will be a major surge in mosquito-transmitted diseases which would kill half a billion more people over the next three decades.

29 Mar 2019

Study uncovers details about human immune response to dengue infection

About 40 percent of the global population is at risk for contracting dengue - the most important mosquito-borne viral infection and a close "cousin" of the Zika virus - and yet, no effective treatment or safe licensed vaccine exists.

29 Mar 2019

Survey suggests need for more systematic approaches to address drug shortages

Despite ongoing efforts to develop efficient, practical and ethical allocation systems for medication shortages, a national survey found that 81 percent of hospital pharmacy managers had experienced medication hoarding.

28 Mar 2019

Innovative model identifies primate species with potential to transmit Zika in the Americas

In the Americas, primate species likely to harbor Zika - and potentially transmit the virus - are common, abundant, and often live near people. So reports a new study published today in Epidemics. Findings are based on an innovative model developed by a collaborative team of researchers from Cary Institute of Ecosystem Studies and IBM Research through its Science for Social Good initiative.

19 Mar 2019

New sensing tool could aid in early detection of Dengue virus

Dr Paulo Rocha from the University of Bath's Department of Electronic & Electrical Engineering is developing a low-cost integrative sensing tool for early detection of Dengue virus, using a novel platform containing electrical sensors to investigate the behavior of human cells infected with Dengue virus.

12 Mar 2019

Predicting global spread of mosquitoes

Outbreaks of mosquito-borne illnesses like yellow fever, dengue, Zika and chikungunya are rising around the world. Climate change has created conditions favorable to mosquitoes' spread, but so have human travel and migration and accelerating urbanization, creating new mini-habitats for mosquitoes.

5 Mar 2019

Mosquitoes can hear over distances much greater than suspected before

Mosquitoes can hear over distances much greater than anyone suspected, according to researchers at Cornell and Binghamton University.

11 Feb 2019

Researchers discover first sour taste receptor used by flies to choose between foods

Taste is so familiar a sensation that you might think scientists had long ago sorted out how the sense works. Yet such research is far from settled.

6 Feb 2019

Tick’s salivary glands could become key research tools for studying virus transmission

The salivary glands of some tick species could become important research tools for studying how viruses are transmitted from ticks to mammals, and for developing preventive medical countermeasures.

30 Jan 2019

Cellular protein that interacts with viruses appears to enable infection process of Zika virus

A cellular protein that interacts with invading viruses appears to help enable the infection process of the Zika virus, according to an international team of researchers who suggest this protein could be a key target in developing new therapies to prevent or treat Zika virus infection.

17 Jan 2019

Researchers develop CRISPR-based method to control pests with precision-guided genetics

Using the CRISPR gene editing tool, Nikolay Kandul, Omar Akbari and their colleagues at UC San Diego and UC Berkeley devised a method of altering key genes that control insect sex determination and fertility.

8 Jan 2019

Scientists identify wildlife species that are most likely to host flaviviruses

After collecting data and comparing it with every known mammal and bird species on Earth, scientists from the University of California, Davis, have identified wildlife species that are the most likely to host flaviviruses such as Zika, West Nile, dengue and yellow fever.

6 Jan 2019

Researchers synthesize new compound that inhibits replication of hepatitis C virus

A new compound that inhibits the replication of hepatitis C virus in several stages of its lifecycle - and is also capable of acting on bacteria, fungi and cancer cells - has been synthesized by researchers at São Paulo State University in Brazil.

19 Dec 2018

KU Leuven scientists develop new vaccine against Zika virus

Scientists at the KU Leuven Rega Institute in Belgium have developed a new vaccine against the Zika virus. This vaccine should prevent the virus from causing microcephaly and other serious conditions in unborn babies.

19 Dec 2018