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.

Discovery lead to better methods for reducing mosquito-to-human transmission of deadly viruses

Researchers from the Johns Hopkins Malaria Research Institute at the Johns Hopkins Bloomberg School of Public Health have made an important finding about Aedes aegypti mosquitoes-;one that could one day lead to better methods for reducing the mosquito-to-human transmission of dengue, yellow fever, Zika, and other harmful and sometimes deadly viruses.

22 Sep 2023

Nanotechnology-based strategies for preventing, treating, and diagnosing viral infections

Newly emerging and recurrent cases of viral infections constitute a significant problem and a huge challenge to public health.

20 Sep 2023

Research shows how mosquito-transmitted viruses hijack host cells to promote infection

New Cleveland Clinic research shows how mosquito-transmitted viruses – like Zika, West Nile, Yellow Fever and dengue viruses – hijack host cells to promote their own replication and infection.

16 Aug 2023

Expert warns of the increasing risks of European holidays

As the UKHSA issues new essential health guidance for travellers going abroad, a leading testing expert warns of the increasing risks of European holidays.

28 Jul 2023

New vaccine protects infant monkeys from diarrhea and promotes growth

A vaccine originally developed to prevent bacteria-caused diarrhea has now also been found to help infant nonhuman primates grow faster, according to a new study published in Nature Communications.

6 Jul 2023

New CRISPR-based system could eliminate 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.

5 Jul 2023

Towards Zika preparedness: immunogenicity insights from vaccine research

Study assesses the safety and immunogenicity of an inactivated Zika virus vaccine candidate.

30 Jun 2023

Europe's battle against Aedes mosquitoes: growing threat of mosquito-borne diseases

Study described how cases of all types of mosquito-borne diseases are increasing in Europe.

26 Jun 2023

Study reveals potential bioterrorism agents and urges enhanced biosecurity measures

Research paper provides pathogen incidences for potential bioterrorism agents in the Netherlands from 2009 to 2019. The study highlights the need for biosecurity measures based on the observed incidences.

15 Jun 2023

Vaccine against deadly chytrid fungus shifts microbiome to make frogs more resilient to future exposure

A human or animal's microbiome -; the collection of often beneficial microorganisms, including as bacteria and fungi, that live on or within a host organism -; can play an important role in the host's overall immune response, but it is unclear how vaccines against harmful pathogens impact the microbiome.

11 Jun 2023

Yellow fever: examining potential burden on vaccine strategy

Researchers presented a stochastic model of yellow fever transmission.

8 Jun 2023

Warming temperatures may increase the transmission potential of Zika or dengue in Brazil by 2050

The transmission potential of Zika or dengue in Brazil may increase by 10% to 20% in the next 30 years due to warming temperatures linked to climate change, according to University of Michigan researchers.

23 May 2023

Is wind spreading urban malaria?

Researchers proposed that the wind may facilitate mosquito transmission over long distances.

10 May 2023

A multisectoral, global, and interdisciplinary approach is needed for better pandemic preparedness

Researchers reviewed existing data on pandemics and described the steps needed to prevent the emergence.

4 May 2023

Study reveals CMPK-2 protein-coding gene as a potent inhibitor of flaviviruses

CMPK2 identified as a potential pan-flavivirus inhibitor, restricting virus replication and providing a basis for developing new antiviral treatments.

23 Apr 2023

Cellulose nanocrystals as a barrier against mosquito bites

Researchers examined the barrier effect of cellulose nanocrystals (CNCs) on mosquitoes.

13 Apr 2023

Mosquitoes' saliva contains immune-dampening substances to increase infectivity of dengue viruses

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.

4 Apr 2023

Overcoming challenges in flavivirus vaccine development: Exploring modern vaccine types for Dengue, Zika, and beyond

Researchers discuss the challenges impeding the development of vaccines against flaviviruses.

4 Apr 2023

Lab-made antibodies may be able to cure people infected with 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.

29 Mar 2023

Hidden "super spreader" spaces associated with a predominance of asymptomatic cases of dengue

For mosquito-borne diseases such as dengue fever, the abundance of the insects in places where people gather has long served as the main barometer for infection risk.

23 Mar 2023