Mosquito News and Research

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Health economics study questions recent policy on screening of US blood donations for West Nile Virus

A recent mandate to screen blood donations in all US states for West Nile virus (WNV) makes little sense from a public health point of view, say researchers from Columbia University and Harvard School of Public Health.

24 Jan 2006

Malaria parasite plasmodium shown to develop in lymph nodes

In the first quantitative, real-time imaging study of the travels of the malaria parasite Plasmodium through mammalian tissue, researchers at the Pasteur Institute in Paris found the parasites developing in an unexpected place: the lymph nodes.

22 Jan 2006

Danger of resistance to malaria drug

The World Health Organization (WHO) has issued new guidelines concerning the use of the malaria drug Artemisinin.

22 Jan 2006

Genetic risk factor for West Nile virus infection identified

People who lack a cell surface protein called CCR5 are highly resistant to infection by HIV but may be at increased risk of developing West Nile virus (WNV) illness when exposed to the mosquito-borne virus, report researchers from the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health (NIH).

18 Jan 2006

Link found between household insecticides and childhood leukaemia

In a report which will be of concern to parents, French researchers say that household insecticides may increase the risk of childhood leukaemia.

17 Jan 2006

Genetic mutation that protects against HIV increases the risk of West Nile Virus infection

A genetic mutation that protects against HIV increases the risk of developing clinical West Nile Virus infection, according to a new study appearing online on January 9th in The Journal of Experimental Medicine.

9 Jan 2006

World's deadliest malaria parasite cloaking gene revealed

The world's deadliest malaria parasite, Plasmodium falciparum, sneaks past the human immune system with the help of a wardrobe of invisibility cloaks. If a person's immune cells learn to recognize one of the parasite's many camouflage proteins, the surviving invaders can swap disguises and slip away again to cause more damage. Malaria kills an estimated 2.7 million people annually worldwide, 75 percent of them children in Africa.

29 Dec 2005

Mosquito threat to Europe from imported plants

Some experts believe that the importation of tropical plants into Europe may pose a disease risk to European countries because the plants harbour deadly mosquitos which carry the threat of exotic diseases.

21 Nov 2005

New plan to defeat Malaria in Africa

Achieving victory over malaria in Africa, a disease that each year kills millions and imposes costs that cripple entire economies, requires a new internationally funded effort dedicated to training and supporting a critical mass of African malaria researchers

14 Nov 2005

Genetic factors versus environmental factors in assessing malaria risk

Humans exposed to malaria get infected and sick to varying degrees, and some of that variation is due to differences in genetic makeup between individuals. But how important are genetic factors compared with environmental ones?

13 Nov 2005

Millions from Gates to fight malaria

A British university will benefit from a donation from Bill and Melinda Gates to the tune of £28 million as part of a £145 million gift to malaria research worldwide.

31 Oct 2005

Gene therapy used to successfully treat heart failure

University of Pittsburgh investigators have for the first time used gene therapy to successfully treat heart failure and other degenerative muscle problems in an animal model that is genetically susceptible to a human muscular dystrophy.

25 Oct 2005

Identification of gene in mosquitoes that helps them to fight off infection by the Plasmodium parasite

Researchers have identified a gene in mosquitoes that helps the insects to fight off infection by the Plasmodium parasite, which causes malaria in humans. Anopheles mosquitoes transmit the malaria parasite to nearly 550 million people worldwide each year with these cases resulting in more than 2 million deaths annually.

25 Oct 2005

Putting things in prespective - help the world's children to fight bird flu

Amid the escalating panic in Europe centered around attempts to halt the spread among the bird population of bird flu, a senior health expert has said that swift action against age-old child killers such as diarrhea and pneumonia could help the world get ready to combat a bird flu pandemic.

19 Oct 2005

Single-dose of Japanese encephalitis vaccine protects children for over a year

A single-dose of a live vaccine against Japanese encephalitis can give children in Nepal high levels of protection for over a year, according to an article in this week's issue of The Lancet.

13 Oct 2005

Scientists genetically modify male mosquitoes to express a glowing protein in their gonads - may help control the mosquito population

By providing a way to quickly sex mosquitoes, the advance paves the way for pooling large numbers of sterile males which could be used to control the mosquito population.

9 Oct 2005

Flaviviruses immune system defenses in different ways depending on whether they are transmitted by mosquitoes or ticks

"Flaviviruses exact an enormous toll in terms of illness and death worldwide," notes NIAID Director Anthony S. Fauci, M.D. "Because this is a relatively new field of study, everything we learn about how these viruses operate is significant.

28 Sep 2005

Dengue and other viruses may have developed tricks that let them reproduce inside macrophages

A monoclonal antibody that can effectively treat mice infected with West Nile virus has an intriguing secret: Contrary to scientists' expectations, it does not block the virus's ability to attach to host cells. Instead, the antibody somehow stops the infectious process at a later point.

28 Sep 2005

Researchers determine the sequence in which the malaria parasite disperses from the red blood cells it infects

Researchers at the National Institute of Child Health and Human Development have determined the sequence in which the malaria parasite disperses from the red blood cells it infects. The National Institute of Child Health and Human Development is one of the Institutes comprising the National Institutes of Health.

19 Sep 2005

Two die from mosquito-borne disease, experts say public must protect themslves from bites

According to health officials, a rare mosquito-borne disease has killed a young girl and an elderly man who lived in neighboring towns, and they are urging people to protect themselves against the insects.

10 Sep 2005