Quantcast

Latest Aedes aegypti Stories

2011-06-27 23:27:08

A new study by a team of University of Notre Dame researchers offers a wealth of information about the rhythmic nature of gene expression in Anopheles gambiae, the mosquito species that transmits the malaria parasite from person to person. Each year, roughly 250 million people suffer from malaria and that results in one million deaths, mostly pregnant women and children under five years of age. Mosquitoes, like all animals, show daily rhythms in behavior and physiology. The rhythmic behaviors...

2011-06-18 01:45:14

Guest edited by Brandeis professor Donald Shepard, it contains 7 original studies co-authored by Brandeis researchers The ten studies in this special issue document the substantial and growing burden of dengue in the Americas, Africa and Asia, and the burden of a chikungunya outbreak in India. Luiz Tadeu Moraes Figuedo's paper on dengue in Brazil confirms the country's worsening trend; from 1999-2009, where cases rose at 6.2% per year and dengue deaths at 12.0% per year. Carmen Perez and...

2011-06-14 01:08:26

Dengue virus circulating between monkeys and mosquitoes could emerge to cause human outbreaks More 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...

f4fac094c17b21413f62e462267fcf34
2011-06-02 05:55:00

In a dramatic breakthrough in the battle against malaria, researchers have identified a low-cost chemical that interferes with a mosquito's ability to detect humans, scientists said on Wednesday. Experts hope the findings could help develop the next generation of mosquito traps and repellents, which could confuse, deter or trap the insects. The chemicals consist of odor molecules that disrupt carbon-dioxide sensors that alert mosquitoes to exhaled human breath, which signals the presence of a...

697b2df84bf3fcb6ef06465dd0611c031
2011-01-26 12:40:00

There is a new player in the fight against dengue fever in Malaysia, 6,000 of them actually. Malaysia released about 6,000 genetically modified mosquitoes into a forest in the first experiment of its kind in Asia aimed at curbing dengue fever, officials said Wednesday to AP. The field test is meant to pave the way for the use of genetically engineered Aedes aegypti male mosquitoes to mate with females and produce no offspring or ones with shorter lives, hopefully curtailing the mosquito...

7b64fc213581f05a17dc441c79e609ff
2011-01-04 12:10:00

An official said on Tuesday that Malaysia has delayed a landmark field trial to release genetically modified mosquitoes designed to combat dengue fever. The 4,000 to 6,000 male Aedes aegypti mosquitoes were originally scheduled to be released last month in an attempt to fight dengue, which killed at least 134 people last year in Malaysia alone. The insects have been engineered so that their offspring quickly die, curbing the growth of the population in a technique researchers hope could...

e92d4a10d423a08fcfe6ad083814362d
2010-12-03 10:06:50

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...

f74c72810b53549726e4e6ea35d070a41
2010-11-12 06:55:00

British scientists have created genetically modified sterile mosquitoes in an experiment to kill off others in their species, and researchers are hopeful that early field trials could help to stave off the rapid spread of dengue fever. This is the first time genetically altered mosquitoes have been set loose in the wild, after years of lab experiments and calculations. But while scientists believe the trial could lead to a breakthrough in halting the disease, critics argue that mutant...

3ad95dcdb0769e4a637e1dd0faa7a6b2
2010-10-01 06:10:00

Scientists announced on Thursday that they had successfully sequenced the genome of the Southern house mosquito--the species of insect most responsible for the transmission of diseases such as West Nile virus, encephalitis, and elephantiasis. Writing in two separate papers published by the journal Science, a team of researchers from 39 universities in the United States and Europe reported that they had completely mapped the DNA of the Southern house mosquito, or Culex pipiens...

dfb18eee94ffbc0d6595a3cd66293bef
2010-04-02 10:03:48

Dengue fever -- caused by a virus transmitted by mosquitoes -- threatens 2.5 billion people each year and there is no vaccine or treatment. New research by Michigan State University entomologists has found that a bacterium can stop dengue viruses from replicating in the mosquitoes. "In nature, about 28 percent of mosquito species harbor Wolbachia bacteria, but the mosquitoes that are the primary transmitters of dengue, Aedes aegypti, have no Wolbachia in them," said Zhiyong Xi, MSU assistant...


Word of the Day
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
Related