Sentences with phrase «yellow fever virus»

The key ally unlocking the mystery surrounding this conflict is the long - dreaded yellow fever virus.

«A large urban outbreak of yellow fever virus in a tropical megacity is a terrifying prospect,» said Ebel.

The extrinsic incubation period of dengue and yellow fever viruses also is dependent on temperature.

Dr. Kevin Myles, Glady «Hazitha» Samuel and Dr. Zach Adelman are Texas A&M AgriLife Research scientists at Texas A&M University, College Station, who published «Yellow fever virus capsid protein is a potent suppressor of RNA silencing that binds double - stranded RNA.»

The AgriLife Research team found a protein that is produced by yellow fever virus, as well as Zika virus, West Nile virus and dengue virus, that suppresses the immune response of the mosquito.

Rhesus macaques previously infected with dengue or yellow fever viruses appear to be neither more nor less susceptible to severe infection with Zika virus, according to new research published in PLOS Pathogens.

This would be expected to be feasible given the success of yellow fever virus across all varieties of that disease, so this prediction urgently needs to be confirmed for Zika.

The specificity of the rRT - PCR assay allows its use for differential diagnosis of arboviral infections in Africa and Asia where ZIKV co-circulates with other arboviruses such as Dengue, Chikungunya and yellow fever viruses [22].

Zika is a member of the flavivirus family (which also includes Yellow Fever virus, dengue virus, West Nile virus and many other viruses primarily spread by mosquito vectors) and I do not know of any others in this family that have been shown to be sexually transmitted.

Their initial cell culture experiments indicated that 25HC can block Zika and related viruses, including dengue and yellow fever viruses, from entering cells.

But between 20 percent and 50 percent of people who develop severe illness related to yellow fever virus may die.

Yellow fever virus is transmitted to people from mosquitos, primarily in tropical and subtropical areas in South America and Africa.

Yellow fever virus is found in tropical and subtropical areas in South America and Africa.

The dengue antibodies were a red herring, he says: both researchers had been vaccinated for the yellow fever virus, which is closely related to dengue; antibodies against these viruses often cross-react.

«More research is needed before we reach that point though, but as ironic as it may seem, we are using the yellow fever virus, once arguably the most feared pestilence in the Western Hemisphere, to help us defeat the Zika virus and quite possibly others as well.»

Dengue, Zika, chikungunya and yellow fever viruses are endemic in tropical and subtropical regions of the world, placing 2.5 billion people at risk for infection.

The yellow fever virus is primarily transmitted by Aedes aegypti, the mosquito species that also spreads Zika and dengue.

Zika is a member of the flavivirus family of viruses, which includes West Nile virus, yellow fever virus, and dengue viruses, for which successful vaccines have been developed.

The mosquito Aedes aegypti, which can spread dengue fever, chikungunya, Zika fever, and yellow fever virus, requires a blood meal to develop eggs.

Though this study, appearing Oct. 20 in Cell Host Microbe, focused on the hepatitis C virus, it also mapped the presence of these tags in other members of the same viral family, including Zika, dengue, West Nile and yellow fever virus.

In January the biopharmaceutical company Acambis, in Cambridge, Massachusetts, announced successful mouse trials of a West Nile vaccine based on a weakened strain of the yellow fever virus.

The mosquito - borne virus — a relative of the Zika and yellow fever viruses — causes symptoms in just one out of every five infected people.

No mosquito pool was found positive for dengue and yellow fever virus.

Expansion of dengue virus, West Nile virus, and Kyasanur forest virus to the northern hemisphere, as well as the emergnce of new viruses (e.g., such as BYDV, Sitiawan virus [27], and Bagaza virus [18]-RRB- and re-emergence of yellow fever virus and Japanese encephalitis virus, all indicate that flaviviruses can not be neglected.

Flaviviruses are single - stranded positive - sense RNA viruses classified in the Genus Flavivirus, Family Flaviviridae with over 70 serotype members [2], of which several important vector - borne viruses (especially those with a zoonotic nature, e.g., yellow fever virus, West Nile virus, Japanese encephalitis virus, and tick - borne encephalitis virus) are members.

Last week, the World Health Organization (WHO) reported one of its largest emergency vaccination campaigns for the yellow fever virus in Africa.

Indeed, several succussful vaccines for flaviviruses have been developed and widely used (e.g., yellow fever virus and Japanese encephalitis virus), so a vaccine for BYDV may be feasible.

The yellow fever virus (YFV) epidemic that began in Dec 2016 in Brazil is the largest in decades.

Zika virus (ZIKV), a previously obscure flavivirus closely related to dengue, West Nile, Japanese encephalitis and yellow fever viruses, has emerged Definitions, types, and theories.