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Tag: "ticks" at biology news

A new view on Lyme disease: Rodents hold the key to annual risk

...ed to yearly variations in the density of infected ticks and thus risk of human exposure. While none of the climate variables influenced nymphal infection prevalence, higher temperatures in the previous year and precipitation patterns in the current year had weak, though unexpected, effects on total den...

Genomics-based vaccine could prevent deadly cattle disease

...asite, Theileria parva , causes the disease. When ticks infected with T. parva bite cattle, they transmit the parasite, launching the disease that typically kills cattle within a month. In July, 2005, TIGR led a research team that published T. parva 's genome sequence, representing roughly 4,000 genes,...

Ticks, flukes, and genomics: Emerging pathogens revealed

...habit of being caused by bacteria that live inside ticks and flatworms. But in the current issue of the journal Public Library of Science Genetics (PLoS Genetics), scientists put ehrlichiosis under the genomic spotlight--and discover some brilliant biology. Led by scientists at The Institute for Genomic ...

What Makes The Brain Tick, Tick, Tick: Researchers Gaining New Insights Into Brain's Internal Clock

...asks, generate resonances that integrate to become ticks of the neural clock. Meck, Buhusi and their clockwork colleagues are using an array of experimental techniques to try to identify this "baton" timing signal and to refine the theory. These include studies using genetically modified mice, pharmacolog...

Infectious disease expert warns of spread of Rocky Mountain spotted fever

...first confirmed cases that could be traced back to ticks carried into to the state on feral dogs, an animal...the source of infection, they found fever-infected ticks in all patients' yards. Ticks were found in the cracks of stucco walls on patients' homes, in crawl ...

Scientists reveal how disease bacterium survives inside immune system cell

..., but it is important because it is transmitted by ticks and causes disease in both animals and humans," Dr. Borjesson says. Neutrophils, which make up about 60 percent of all white blood cells, are the largest cellular component of the human immune system -- billions exist inside each human. Typically, n...

Researchers identify protein crucial for survival of Lyme-disease bacterium

...amatic decrease." In the study, each time infected ticks fed, bacteria levels within them dropped until the...s as to how the organism has evolved to survive in ticks and why it has chosen a tick environment to be its natural vector in nature. "It potentially could ...

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