Tag: "mosquito" at biology news
Report: How 10 top new technologies will help world reach globally-agreed goals by 2015
... most of the world's human malaria, as well as the mosquito
that carries it. Knowledge of these genomes, paired with the knowledge of the human genome, can be used to develop new drugs and vaccines. As well, the report forecasts the creation of microbicides for female-controlled protection against sexually t...
Predicting infection risk of mosquito-borne disease
...ction -- the average number of times an infectious mosquito
bites a person per day -- is flawed. The distribution of humans and suitable habitat for mosquito
larvae varies across the landscape. And the density of mosquito
populations varies seasonally, risin...
Stretching the supply of flu vaccine: Solution offered in new SLU research in New England Journal
...a small bleb of vaccine into the skin, much like a mosquito
bite or allergy skin test, using a very small needle. Belshe said the lower-dose intradermal vaccine did not, however, work as well in an older population. A total of 238 volunteers were enrolled at Saint Louis University and the University of Roches...
Health concerns: Mosquito mapping may help
...rmine the incidence of mosquito-borne diseases and mosquito
resistance to insecticide, he said. "In many parts of the state, we don't have a clue as to what level of insecticide resistance exists," Olson said. "It's a bad time to find out you've got it (resistance) in the middle of a disease outbrea...
Insecticide resistance in mosquitoes being studied
...s or West Nile encephalitis is hardly the time for mosquito
control officials to find out their pesticides are...iment Station entomologist. The southern house mosquito
is the primary vector for viruses causing St. Louis encephalitis and West Nile encephalitis in Texas...
Scientists reveal molecular secrets of the malaria parasite
...sures" in the stages of their life cycles in their mosquito
vectors and in their mammalian hosts. Malaria parasites undergo three stages in their mosquito
vectors, three stages in their vertebrate hosts and a sexual development stage during which the para...
Falling ants glide back to trunk to avoid dangers of forest floor
...n Iquitos to explore how deforestation affects the mosquito
transmission of Venezuelan equine encephalitis. In hopes of establishing a mosquito
colony in the laboratory, he goes in search of mosquitoes and larvae in the canopy where they live, ...
Ancient olfaction protein is shared by many bugs, offering new pest control target
..., the malaria mosquito. When the medfly, moth, and mosquito
versions (or "orthologues") of Or83b were expressed in fruit flies that were missing their own version of the gene, the flies' sense of smell was restored, arguing not only that the gene's sequence has been conserved over 250 million years of evoluti...
Weather forecasts may be predictors for prevalence of West Nile virus
...between weather conditions and an abundance of two mosquito
species linked to outbreaks in humans and wildlife...oughout the state at surprisingly high levels. Two mosquito
species -- Culex restuans, the white-spotted mosquito, and Culex pipiens, the northern house mosquit...
Tracking a killer: Observing liver invasion by malarial parasites
...s that express fluorescent tags to rodents through mosquito
bites, and then watched for the arrival of the parasites in the livers of the test animals. They observed parasites crawling along the interior of the liver sinusoids (which take the place of capillaries in the liver), sometimes against the direction...
Mosquito study shows new, faster way West Nile can spread
...ninfected laboratory mice, the virus can pass from mosquito
within an hour. "We were amazed to see that it could happen," said UTMB associate professor Stephen ...
NHGRI selects 13 new targets for large-scale sequencing program
...hey are: the M and S strains of a malaria-carrying mosquito
(Anopheles gambiae) and a roundworm (Heterorhabditis bacteriophora). Researchers will also construct a physical map of the zebra finch (Taeniopygia guttata) genome, paving the way for later efforts to sequence selected regions of the songbird's genom...
Antibiotics help combat dangerous tropical disease
...cted mosquito: together with its anticoagulant the mosquito
pumps threadworm larvae into its host's body. These gravitate towards the lymph nodes, where they grow into threadworms which may be up to ten centimetres long. The body reacts by producing inflammation which halts the flow of lymphatic fluid. The co...
Virginia Tech wins $2.7 million grant to protect people from malaria
...teristics. It will be targeted specifically to the mosquito
species that transmits malaria, Anopheles gambiae,...different fields. Paulson will be in charge of the mosquito
rearing and whole insect bioassays, while Wong will be responsible for cloning the genes and express...
UQ leads $10m study to fight dengue
...alled Wolbachia that passes from one generation of mosquito
to the next and can halve the adult mosquito
lifespan. This project will seek to introduce the bacteria to mosquitoes so that they do not live lo...
Fighting malaria by manipulating mosquitoes' sense of smell
...f $436 million in support. As part of this effort, mosquito
researchers from Vanderbilt University, Yale University, the Wageningen University in the Netherlands, the Ifakara Health Research and Development Centre in Tanzania and the Medical Research Council Laboratories in the Gambia will be developing a fun...
'Perfume' to lure mosquitoes and control malaria
...n odors that say "dinner." After biting, while the mosquito
feeds on blood that is needed for its egg production, parasites from the mosquito
enter and infect the human. When an infected person is bitten again, the parasite can be transmitted...
Menzies Research Institute director named HHMI International Research Scholar
... increasing resistance to anti-malarial drugs, and mosquito
resistance to insecticides, there is a worldwide need for innovative research into malaria," Professor Foote said. The HHMI International Research Scholar funding will assist Professor Foote to better understand how a person's immune system fights ma...
Sneaky sex causes fish pest
...headaches? Grant yourself lucky that you are not a mosquito
fish, as females wouldn't think twice about attack... prevent a nasty blast. All sexual activity among mosquito
fish relies on male coercion, which depends on environmental temperatures. Dr. Robbie Wilson from th...
Prevalence of infection in a population can shape parasite virulence
...tion, Bedhomme et al. worked with the yellow fever mosquito
Aedes aegypti and its natural enemy, the single-...e Vavraia culicis . They divided recently hatched mosquito
larvae into groups of 60 larvae, and exposed half of the groups to the parasite. Larvae were then pl...
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