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Latest Rickettsiales Stories

2014-07-11 11:13:01

Penn State Mosquitoes infected with the bacteria Wolbachia are more likely to become infected with West Nile virus and more likely to transmit the virus to humans, according to a team of researchers. "Previous research has shown that Wolbachia -- a genus of bacteria that live inside mosquitoes -- render mosquitoes resistant to pathogen infection, thereby preventing the mosquitoes from infecting humans with the pathogens," said Jason Rasgon, associate professor of entomology, Penn...

2014-07-01 08:29:38

UNION CITY, Calif., July 1, 2014 /PRNewswire/ -- Abaxis, Inc. (NasdaqGS: ABAX), a medical products company manufacturing point-of-care blood analysis systems for both the medical and veterinary markets, today announced that the Center for Veterinary Biologicals of the U.S. Department of Agriculture (USDA) has approved its VetScan Canine Ehrlichia Antibody Test Kit for use in rapid detection of canine Ehrlichia. Clint Severson, chairman, president and chief executive officer of...

Study Explores Evolution Of Bacteria That Can Be Used To Fight Dengue
2013-12-16 12:43:03

Instituto Gulbenkian de Ciencia Wolbachia, a symbiont that resides naturally up to 70% of all insect species, are probably the most prevalent infectious bacteria on Earth. In 2008 Luis Teixeira, now a principal investigator at the Instituto Gulbenkian de Ciência (IGC, Portugal), and other scientists have discovered that Wolbachia can protect their hosts against viral infections. Since then, several studies have been made to further investigate the interactions between Wolbachia and...

Oceans Have Been The Stage For Earth's Longest Ongoing Battle Between Bacteria And A Virus
2013-02-14 13:55:19

April Flowers for redOrbit.com - Your Universe Online A new study led by Oregon State University reveals that the greatest battle in Earth's history has been going on for hundreds of millions of years. And the battle, which no one knew existed until now, is far from over. The findings of this study were published in a recent issue of Nature. On one side of the battle lines stands SAR11, a bacterium that´s the most abundant organism in the oceans, surviving where most other cells...

2011-10-20 22:49:19

Researchers at Boston University have made discoveries that provide the foundation towards novel approaches to control insects that transmit deadly diseases such as dengue fever and malaria through their study of the Wolbachia bacteria. Their findings have been published in the current issue of Science Express, an online publication of selected papers in advance of the print edition of Science, the main journal of the American Association for the Advancement of Science (AAAS). "Wolbachia...

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2010-10-12 08:54:06

"You don't have to go out into the woods anymore," says tick expert Brian F. Allan, PhD, who just completed a postdoctoral appointment at Washington University in St. Louis. "The deer are bringing tick-borne disease to us." So, it stands to reason that anything deer like, might increase the risk of tick-borne disease for people. The invasive plant bush honeysuckle, for example. Yes, that leafy shrub with the lovely egg-shaped leaves on arching branches, fragrant white or yellow flowers and...

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2010-06-22 07:21:22

Like an unwelcome houseguest or itinerant squatter, the human body louse shows up when times are bad and always makes them worse. Now a multi-institutional team reports that it has sequenced the body louse genome, an achievement that will yield new insights into louse "“ and human "“ biology and evolution. The study, which also sequenced the genome of a microbe that lives inside the body louse, appears in Proceedings of the National Academy of Sciences. Thanks to its tenacity, the...

2010-06-21 14:00:00

ROCKVILLE, Md., June 21 /PRNewswire-USNewswire/ -- A global research team led by scientists from the J. Craig Venter Institute (JCVI) today published a new study in the Proceedings of the National Academy of Sciences describing the sequencing and analysis of the body louse genome. Lead author, Ewen Kirkness, Ph.D., JCVI, directed the sequencing and gene-finding efforts in the project. Detailed analysis of the genome was then conducted by a large international group of 71 scientists,...

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2009-12-02 15:42:03

Researchers from the University of Georgia College of Veterinary Medicine have made an "unexpected" dual discovery that could open new avenues for treating Ichthyophthirius multifiliis, or "Ich", a devastating single-celled protozoan parasite that commonly attacks freshwater fish. With the aid of whole-genome sequencing, researchers found that Ich harbors two apparently symbiotic intracellular bacteria: Bacteroides, which are usually found free-living, and Rickettsia, which are obligate...

2009-05-02 09:32:36

Parasite speeds up mosquitoes Dengue fever is a terrible viral disease blighting many of the world's tropical regions. Carried by mosquitoes, such as Aedes aegypti, 40% of the world's population is believed to be at risk from the infection. What is more, previous exposure to other strains of the fever does not confer protection. In fact, subsequent infections are significantly worse, and can result in fatal dengue hemorrhagic fever. The lack of a functioning vaccine forced Scott O'Neill and...


Latest Rickettsiales Reference Libraries

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2011-04-28 17:50:48

Wolbachia is a genus of bacteria which infects arthropod species, including a high proportion of insects (~60% of species). It is one of the world's most common parasitic microbes and possibly the most common reproductive parasite in biosphere. Studies have suggested that 25-70% of all insect species are estimated to be potential hosts. Marshall Hertig and Burt Wolbach first identified the bacterium in 1924 in a species of mosquito. Hertig described the genus as Wolbachia pipientis. Not...

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2011-04-25 21:24:26

Rickettsia rickettsii is a gram-negative bacterium native to the New World and causes the malady known as Rocky Mountain spotted fever (RMSF). It is transmitted through the bit of an infected tick when it feeds on animals and humans. Humans are not necessary hosts in the rickettsia-tick life cycle but they can be. S. Burt Wolbach created the first detailed description of the etiologic agent in 1919. He recognized it as an intracellular bacterium seen most frequently in endothelial cells....

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Word of the Day
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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