Illnesses caused by disease-infected ticks, mosquitoes and fleas have tripled in the U.S. in recent years, according to a new report from the Centers for Disease Control and Prevention (CDC). Lyme disease is the most common ...
May 7, 2018
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Research from UW Medicine and collaborators indicates that a drug-like molecule can activate innate immunity and induce genes to control infection in a range of RNA viruses, including West Nile, dengue, hepatitis C, influenza ...
Dec 17, 2015
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The virus that causes dengue fever infects an estimated 390 million people per year. Infection often leads to symptoms so severe that it was once called "breakbone fever" for the pain it causes, or even death. It's the fastest-growing ...
Dec 2, 2015
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U.S. Olympic and Paralympic athletes and staff who traveled to Rio de Janeiro, Brazil, for the 2016 Summer Games did not become infected with Zika virus but did test positive for other tropical, mosquito-borne viral infections, ...
Oct 8, 2017
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Two years ago, the world was gripped in Zika panic as the mosquito-borne virus infected millions and spread across 80 countries. Officials declared a global health emergency and tourists canceled their tropical vacations. ...
Jan 8, 2018
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While studying viruses best known for infecting the brain, researchers at Washington University School of Medicine in St. Louis stumbled upon clues to a conundrum involving a completely different part of the anatomy: the ...
Oct 4, 2018
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(Medical Xpress)—Published online in the prestigious Proceedings of the National Academy of Sciences (PNAS), the team from CSIRO's Australian Animal Health Laboratory, in Geelong, have shown Vago, a protein previously identified ...
Oct 3, 2012
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Scientists potentially have found a way to disrupt Zika and similar viruses from spreading in the body.
Jun 17, 2016
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A newly discovered mechanism at work in human immunodeficiency virus (HIV) patients may also lead to new treatments for COVID-19, according to a team of researchers at the University of Alberta.
Jul 31, 2020
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The existence of certain microorganisms in your gut may bolster the immune system's ability to fend off a herpes viral attack that can cause fatal brain inflammation, reports a new City of Hope-led study.
May 14, 2019
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West Nile virus (or WNV) is a virus of the family Flaviviridae. Part of the Japanese encephalitis (JE) antigenic complex of viruses, it is found in both tropical and temperate regions. It mainly infects birds, but is known to infect humans, horses, dogs, cats, bats, chipmunks, skunks, squirrels, and domestic rabbits. The main route of human infection is through the bite of an infected mosquito.
Image reconstructions and cryoelectron microscopy reveal a 45–50 nm virion covered with a relatively smooth protein surface. This structure is similar to the dengue fever virus; both belong to the genus Flavivirus within the family Flaviviridae. The genetic material of WNV is a positive-sense, single strand of RNA, which is between 11,000 and 12,000 nucleotides long; these genes encode seven non-structural proteins and three structural proteins. The RNA strand is held within a nucleocapsid formed from 12 kDa protein blocks; the capsid is contained within a host-derived membrane altered by two viral glycoproteins.
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