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Tag: "virulent" at biology news

Bats prey on nocturnally migrating songbirds

...rogramme was soon joined by one of their once most virulent Swiss detractors (Prof. Raphaël Arlettaz, University of Bern and Swiss Ornithological Institute). The technique of stable isotopes was applied because this recently developed method allows tracking species' main dietary specializations and trophic le...

Wheat can fatally starve insect predators

...may make several strains of lectins in response to virulent larvae, Williams said. Results of the study are...ian fly larvae attack, she said. In addition, some virulent larvae can reprogram plant development so that cells in leaves and the base of the plant where the i...

In-shell vaccine for chick disease

... hatching. When hatched chicks were exposed to the virulent M41 strain, we observed protection rates of up to 100 percent. With the UK poultry industry sustaining losses of £23.6M a year to infectious bronchitis virus we hope that our research could have a real impact on improving yields for UK farmers." "...

Cold sore virus might play role in Alzheimer's disease

...ApoE-4 may support the ability of HSV to be a more virulent pathogen," said Howard Federoff, M.D., Ph.D., the leader of the team and professor of Neurology, Medicine, and Microbiology & Immunology. He worked closely with post-doctoral research associate Renee Miller, Ph.D., on the project. The findings...

NT researchers discover breakthrough in malaria treatment

...alciparum. Although attention focuses on the more virulent P. falciparum, vivax malaria causes a huge amount of illness in the tropical countries of our region and puts many Australian travelers at risk of disease. Vivax malaria is becoming increasingly resistant to standard treatments, but few studies hav...

How plague-causing bacteria disarm host defense

...sponsible for the Middle Ages' "Black Death" and a virulent form of food poisoning today. Their study will be published online in the May 25 issue of Molecular Cell. YpkA targets a host protein called Gaq, the messenger that transmits extracellular signals ("we are under attack!") into the host cell, so t...

Understanding why C. difficile causes disease -- it's hungry

...inflammations of the colon. In 2002 a new, more virulent strain began appearing in hospitals in the United ...in a representative sampling in Quebec. The highly virulent strain has a much higher toxin production which leads to more destructive and deadly disease, says V...

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