Latest yellow fever Stories
New research by University of Warwick historian Dr Tim Lockley has found why yellow fever had a green bias in 19th century fever outbreaks in the southern states of the US. Almost half of the 650 people killed by yellow fever in Savannah Georgia in 1854 were Irish immigrants. Dr Tim Lockley’s study is based on four sources: the burial records of Laurel Grove cemetery; the records of the city’s Catholic cemetery; the minutes of Savannah’s Board of Health; and published lists of the...
PANAMA CITY, Panama, May 21, 2012 /PRNewswire/ -- International scientific and government experts held a forum on 16 May 2012 to discuss the potential use of Oxitec's genetically modified Aedes aegypti mosquitoes as a tool to combat Dengue Fever in Panama. The independent forum was co-organised by the Smithsonian Tropical Research Institute (STRI), The Gorgas Memorial Institute for Health Studies and the University of Panama. This brought together national and regional...
Experiments by University of California Riverside entomologists demonstrate mosquitoes are attracted first to carbon dioxide, then to skin odors; findings could lead to more effective mosquito traps The carbon dioxide we exhale and the odors our skins emanate serve as crucial cues to female mosquitoes on the hunt for human hosts to bite and spread diseases such as malaria, dengue and yellow fever. Two entomologists at the University of California, Riverside have now performed...
Scientist suggests that squalamine be explored as a human antiviral agent based on the reported discovery and its known safety profile in humans A compound initially isolated from sharks shows potential as a unique broad-spectrum human antiviral agent, according to a study led by a Georgetown University Medical Center investigator and reported in the Proceedings of the National Academy of Sciences Early Edition online September 19. The compound, squalamine, has been in human clinical...
An experimental research carried out in Sant Cugat del Vallès and RubÃ, coordinated by researchers from UAB, assessed the efficacy of a combination of strategies to reduce the population of tiger mosquitos (Aedes albopictus). The research began in February 2008. The research focused on monitoring eggs found in small experimental traps. Researchers observed that for the first time, the number of eggs diminished after applying the measures.The strategies began with a visit to the affected...
Dengue virus circulating between monkeys and mosquitoes could emerge to cause human outbreaksMore than a thousand years ago, somewhere in Southeast Asia, a fateful meeting occurred between a mosquito-borne virus that infected mainly monkeys and a large, susceptible group of humans.The result: the world's first outbreak of dengue fever.Today, dengue virus "” which can produce high fever, excruciating joint pain and even death "” has spread throughout tropical Asia, Africa and South...
Vaccine scientists say their "Holy Grail" is to stimulate immunity that lasts for a lifetime. Live viral vaccines such as the smallpox or yellow fever vaccines provide immune protection that lasts several decades, but despite their success, scientists have remained in the dark as to how they induce such long lasting immunity.Scientists at the Emory Vaccine Center have designed tiny nanoparticles that resemble viruses in size and immunological composition and that induce lifelong immunity in...
(Ivanhoe Newswire) -- Breastfeeding moms may want to postpone their next trip overseas or avoid getting the yellow fever vaccine. A new report found that lactating mothers could pass on a strain of yellow fever to their babies, through breast milk.Yellow fever is a viral infection transmitted by mosquitoes. It typically occurs in tropical regions of Africa and in parts of South America. The yellow fever vaccine is a live-virus vaccine that has been used since the 1940s.A new report showed a...
A five-week old infant most likely contracted a vaccine strain of yellow fever virus through breastfeeding, according to a case report published in CMAJ (Canadian Medical Association Journal) (pre-embargo link only) http://www.cmaj.ca/embargo/cmaj100619.pdf"Until recently, avoidance of vaccination of breastfeeding women with yellow fever vaccine had been based on theoretical grounds only," writes Dr. Susan Kuhn, with coauthors. "We report the probable transmission of vaccine...
Alexander Raikhel's lab identifies a microRNA molecule that controls blood feeding and egg development in Aedes aegypti femalesEach year, dengue fever infects as many as 100 million people while yellow fever is responsible for about 30,000 deaths worldwide. Both diseases are spread by infected female Aedes aegypti mosquitoes, which require vertebrate blood to produce eggs. The blood feeding and the egg development are tightly linked to how the mosquito transmits the disease-causing virus.Now...
Latest yellow fever Reference Libraries
Yellow fever is an acute viral hemorrhagic disease with a 40 to 50 nm enveloped RNA virus with positive sense of the Flaviviridae family. It is transmitted by the bite of female mosquitoes and is found in tropical and subtropical areas in South America and Africa, but not in Asia. Primates and a few kinds of mosquitoes are the only known hosts. The origin of the disease is most likely Africa. From there it was introduced to South America through the slave trade in the 16th century. There...
