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.

Infected mice can be better models for human diseases

Vaccines and therapeutics developed using mice often don't work as expected in humans. New research at Washington University School of Medicine in St. Louis points to the near-sterile surroundings of laboratory mice as a key reason.

21 Apr 2016

Angola' health officials extend vaccination campaign for yellow fever to Huambo and Benguela provinces

As Angola grapples with its worst yellow fever outbreak in decades, the Ministry of Health, with the support of the World Health Organization and partners have extended the vaccination campaign beyond the capital Luanda into Huambo and Benguela – 2 of the other 5 provinces reporting local transmission.

21 Apr 2016

Argentinian researchers develop plastic ovitrap to monitor, control Aedes aegypti mosquito

Argentinian researchers from the Centro de Investigaciones de Plagas e Insecticidas have developed a new trap that can be used to effectively monitor and control the Aedes aegypti mosquito, which is the primary transmitter of Zika, dengue, chikungunya, and yellow fever. The trap is described in the Journal of Medical Entomology.

7 Apr 2016

Purdue University-led researchers determine structure of Zika virus

A team led by Purdue University researchers is the first to determine the structure of the Zika virus, which reveals insights critical to the development of effective antiviral treatments and vaccines.

1 Apr 2016

Research describes first new mouse model for Zika infection in decades

Efforts to combat the rapid spread of Zika virus got a boost this week as researchers at the University of Texas Medical Branch, Galveston (UTMB) announced the first peer-reviewed publication of a mouse model for Zika infection reported in decades.

30 Mar 2016

Yellow fever outbreak in Angola kills 178 people

Angola is grappling with a yellow fever outbreak, which has infected more than 450 people and killed 178 – the first epidemic of the disease to hit the country in 30 years.

28 Mar 2016

Preventing the spread of Zika: an interview with Professor John Oxford

The link between the Zika virus and Guillain-Barré on the one hand, and pregnancy and the virus affecting the fetus in terms of microcephaly on the other, is still not confirmed conclusively.

1 Mar 2016

WRAIR researchers publish results from Plasmodium vivax malaria vaccine study

Walter Reed Army Institute of Research researchers recently published the results of testing a Plasmodium vivax malaria vaccine candidate in a human challenge model.

27 Feb 2016

Luminex collaborates with University of São Paulo to validate multi-analyte Zika virus assay

Luminex Corporation today announced it is collaborating with the Laboratory of Molecular Evolution & Bioinformatics, Biomedical Sciences Institute, University of São Paulo, Brazil to validate a multi-analyte Zika virus assay developed by Luminex partner, GenArraytion, Inc.

26 Feb 2016

Tackling Zika virus: Challenges ahead

Health officials, drug companies, governments and the public are scrambling to understand and combat the Zika virus. The virus was first identified almost 70 years ago, but little is known about it. And now, officials suspect it could be related to a rise in microcephaly cases in affected countries.

25 Feb 2016

Researchers examine socio-ecology, climate responses of Zika virus transmission

Zika: The virus has emerged as a major public health threat that's rapidly spreading through South and Central America and the Caribbean.

22 Feb 2016

UF study shows effective way to control damaging health impacts of mosquito-borne diseases

A common toxin used to kill yellow fever mosquito larvae - the most prevalent transmitter of dengue, chikungunya and zika viruses - is highly effective. While there are some fitness advantages to surviving adults, this is still an effective way to control the damaging health impacts of these mosquito-borne diseases, a new University of Florida study shows.

15 Feb 2016

ZAO provides platform for scientists, clinicians to share new research and clinical data on Zika

ZAO provides a platform for scientists and clinicians to publish their findings and source data on Zika and its mosquito vectors within days of submission, so that research, medical and government personnel can keep abreast of the rapidly evolving outbreak.

10 Feb 2016

Vaccinations could have significant economic value

Vaccinations, long recognized as an excellent investment that saves lives and prevents illness, could have significant economic value that far exceeds their original cost, a new study from researchers at the Johns Hopkins Bloomberg School of Public Health has found.

9 Feb 2016

A Thai man with Zika virus has been hospitalized in Taiwan

A man from Thailand has been hospitalized in Taiwan after having arrived there infected with Zika virus, an agent thought to be associated with brain-damaging birth defects in infants.

21 Jan 2016

Mosquitoes known to transmit dengue, chikungunya more likely to lay eggs in water sources near flowers

Certain mosquitoes are more likely to lay eggs in water sources near flowers than in water sources without flowers, according to an article published in the Journal of Medical Entomology.

6 Jan 2016

Researchers test effectiveness of commercially available mosquito repellents

Researchers at New Mexico State University tested 10 commercially available products for their effectiveness at repelling mosquitoes, and the results were published in the Journal of Insect Science.

29 Oct 2015

Health Partnership Scheme funds project dedicated to viral haemorrhagic fever

A team from Plymouth University Peninsula Schools of Medicine and Dentistry and Plymouth Hospitals NHS Trust has received funding of £136,000 from the Health Partnership Scheme to develop a training programme to help the Sierra Leonean Health Service to fight future outbreaks of viral haemorrhagic fever.

1 Oct 2015

WHO and the Government of Saudi Arabia work together to care for health issues of hajj pilgrims

As an estimated 2 million Muslims from 184 countries gather in Saudi Arabia’s holy city of Mecca to take part in the annual hajj pilgrimage, months of preparations to care for health issues of pilgrims are also coming together.

22 Sep 2015

Scientists discover genetic markers for mosquito resistance to insecticides

Controlling mosquitoes that carry human diseases is a global health challenge as their ability to resist insecticides now threatens efforts to prevent epidemics. Scientists from the CNRS, IRD, Université Claude Bernard Lyon 1, Université Joseph Fourier in Grenoble and Institut Pasteur in French Guiana have identified new genetic markers for mosquito resistance to insecticides, which could improve its detection in the field.

24 Jul 2015