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[CSF] Thomas Dupont
Veteran Cruncher Joined: Aug 25, 2013 Post Count: 685 Status: Offline |
Bientôt un vaccin efficace contre la dengue ?
----------------------------------------"Une étude récente a montré l’efficacité d’un nouveau vaccin contre la dengue, une maladie infectieuse qui touche de nombreux enfants dans le monde. Ce résultat est un nouvel espoir vers l’éradication de cette pathologie." http://www.futura-sciences.com/magazines/sant...ace-contre-la-dengue--%5D |
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twilyth
Master Cruncher US Joined: Mar 30, 2007 Post Count: 2129 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Brazil will be the first to release genetically modified mosquitoes on an industrial scale in an attempt to fight dengue fever. Personally I hope a similar technique eventually leads to the extinction of the b**tards. I can't go out at night during the summer because I swear they come from neighboring states just to bite me. Anyhoo . . .
----------------------------------------Another way to control mosquitoes is the environmentally benign Sterile Insect Technique (SIT). This initially involved blasting mosquitoes with radiation in order to induce sterility, but this often damages the insects, meaning that many won’t go on to mate when released. While this may be an option for other, larger insects, it has proved for mosquitoes. Genetically Modified Mosquitoes Oxitec’s solution is an advancement of SIT, which involves the insertion of a lethal gene into male mosquitoes that prevents them from being able to successfully reproduce. Although the insects are not truly sterile, they can be considered sterile because they die before reaching sexual maturity. Released “sterile” males will therefore seek out females to mate with, competing with wild males, and the resultant progeny will contain the lethal gene and therefore die before they can mate. If a sufficient number of mosquitoes are released, the females will be more likely to find a “sterile” male, and a substantial drop in population can be achieved in a remarkably short period. The flight range of dengue mosquitoes is also around only 200 yards and they’re restricted to urban areas, making it easy to control populations with this technique as “zones” of release can be established to ensure sufficient area coverage. ![]() ![]() |
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Rickjb
Veteran Cruncher Australia Joined: Sep 17, 2006 Post Count: 666 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
littlepeaks reported (above, on Nov 6 2013): "Vietnam releases dengue-blocking mosquitoes:
The mosquitoes have been intentionally infected with bacteria called Wolbachia, which essentially blocks them from getting dengue." Now (30 Oct 2014), researchers have started a 12-month trial in Townsville Australia: "Bacteria-infected mosquitoes to fight dengue fever in north Queensland By Stephanie Smail and Allyson Horn http://www.abc.net.au/news/2014-10-30/bacteri...engue/5852846?section=qld Updated yesterday at 1:02pmThu 30 Oct 2014, 1:02pm Swarms of bacteria-infected mosquitoes will be released into backyards in north Queensland today as part of a trial to eliminate dengue fever. The insects will be infected with the Wolbachia bacteria, which stops the transmission of dengue. Once they are released in Townsville, it is hoped they will infiltrate and breed with the existing wild population, passing on Wolbachia and eventually wiping out dengue. The project's Professor Scott O'Neill, from Monash University, said the Eliminate Dengue project was the first trial of its type in an Australian city. In the next 12 months small buckets filled with water, mosquito food and a small number of bacteria-infected mosquito eggs will be placed in 4,000 backyards. ... The number of infections in Townsville will be monitored to see if there are fewer infections than in previous years. If the trial is successful the project will be rolled out to problem areas in South-East Asia." (Earlier research on using wolbachia to block dengue transmission was also reported by kateiacy in the adjacent thread Dengue eradication experiment ) |
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Jim Slade
Veteran Cruncher Joined: Apr 27, 2007 Post Count: 664 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Climate and Viral Illness: El Nino Event Linked to Dengue Epidemics
The National Institute of Health (NIH) says that Wilbert Van Panhuis, University of Pittsburgh, reports data that indicates that El Nino is linked to Dengue epidemics. http://directorsblog.nih.gov/2015/10/13/clima...nked-to-dengue-epidemics/ ![]() |
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SekeRob
Master Cruncher Joined: Jan 7, 2013 Post Count: 2741 Status: Offline |
Interesting as I read about a knuckle-fever/dengue outbreak this year [it also occurs in Italy], and we are in the midst of an El Ninô which is expected to last till Q2-2016.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
It would appear that the work WCG has shown the scientists a solution and has gone onto now trying solutions to the problem. All I can say is that I am glad that my douglasalt1 contribution (small that it may be) has helped.
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SekeRob
Master Cruncher Joined: Jan 7, 2013 Post Count: 2741 Status: Offline |
In the news, related to Dengue, in that Zika, causing microcephaly, is carried by the same mosquitos.http://www.nbcnews.com/health/health-news/vir...th-defects-brazil-n474346
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kateiacy
Veteran Cruncher USA Joined: Jan 23, 2010 Post Count: 1027 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Mexico has approved a dengue vaccine.
----------------------------------------http://www.theguardian.com/world/2015/dec/09/...cine-against-dengue-virus ![]() |
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Jim Slade
Veteran Cruncher Joined: Apr 27, 2007 Post Count: 664 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
The Zika virus may cause birth defects-and experts think it's coming to the US
The Zika virus, a rare tropical disease that's causing a panic in Brazil-because it may lead to babies being born with abnormally small heads-has now made its way to Puerto Rico. And experts fear the United States could be next. This article includes a global map of devastating mosquito-borne illnesses around the world. http://www.msn.com/en-us/news/us/the-zika-vir...-us/ar-AAgovoV?li=BBnb7Kz ![]() |
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Jim Slade
Veteran Cruncher Joined: Apr 27, 2007 Post Count: 664 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Dengue Vaccine Enters Phase 3 Trial in Brazil
Investigational Vaccine to Prevent "Breakbone Fever" Developed at NIH A large-scale clinical trial to evaluate whether a candidate vaccine can prevent the mosquito-borne illness dengue fever has been launched in Brazil. The vaccine, TV003, was developed by scientists in the laboratory of Stephen Whitehead, Ph.D., at NIH's National Institute of Allergy and Infectious Diseases (NIAID). The Butantan Institute, a non-profit producer of immunobiologic products for Brazil, licensed the NIAID dengue vaccine technology and is sponsoring the placebo-controlled, multi-center Phase 3 trial using test vaccine produced in Sao Paulo. http://www.niaid.nih.gov/news/newsreleases/2016/Pages/DengueBrazilTrial.aspx ![]() |
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