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September 19
1863 - Gen. Edward F. Beale loans money to A.A. Hudson and Oliver P. Robbins to erect toll house in Newhall Pass [story]


Scientists used advanced genomic sequencing technology to identify a single point of infection from an animal reservoir to a human in the current Ebola outbreak in West Africa. This research has also revealed the dynamics of how the Ebola virus has been transmitted from human to human, and traces how the genetic code of the virus is changing over time to adapt to human hosts. Pardis Sabeti, M.D., Ph.D, a 2009 National Institutes of Health Director’s New Innovator honoree and her team carried out the research.

“Dr. Sabeti’s research shows the power of using genomic analysis to track emerging viral outbreaks,” said NIH Director Francis S. Collins, M.D., Ph.D. “This ability produces valuable information that can help inform public health decisions and actions.”

hhs_nih_logoThe 2014 Ebola outbreak is now the largest outbreak in history, with current estimates of 2,473 infections and 1350 deaths since it began in late December 2013 according to the World Health Organization. This outbreak is also the first in West Africa and the first to affect urban areas. There are no approved drugs for Ebola virus disease, though prompt diagnosis and aggressive supportive care can improve survival. The disease is characterized by high fever, headache, body aches, intense weakness, stomach pain, and lack of appetite. This is followed by vomiting, diarrhea, rash, impaired kidney and liver function and in some cases, internal and external bleeding.

To better understand why this outbreak is larger than previous outbreaks, Dr. Sabeti, senior associate member of the Broad Institute, Cambridge, Massachusetts, led an extensive analysis of the genetic makeup of Ebola samples from patients living in affected regions. Joined by an international team of scientists, Dr. Sabeti used advanced technology to analyze the genetics of the Ebola samples extremely rapidly and with high levels of accuracy. Using this technology, the researchers pinpointed a single late 2013 introduction from an unspecified animal reservoir into humans. Their study showed that the strain responsible for the West African outbreak separated from a closely related strain found in Central Africa as early as 2004, indicating movement from Central to West Africa over the span of a decade. Studying RNA changes occurring over the span of the outbreak suggests that the first human infection of the outbreak was followed by exclusive human to human transmissions.

While analyzing the genetic makeup of the Ebola samples, Dr. Sabeti and colleagues discovered a number of mutations that arose as the outbreak spread. Some of these mutations, termed nonsynonymous mutations, alter the biological state of the virus and may allow it to continually and rapidly adapt to human immune defenses as the outbreak continues. This feature points to the need for improved methods that will allow for close monitoring of changes in the viral genome and the impact on vaccine targets. Such monitoring, called genomic surveillance, can provide important insights into the biology of how the Ebola virus spreads and evolves. It may also allow scientists to develop improved methods to detect infection, and point the way to new and improved drug and vaccines.

Dr. Sabeti’s New Innovator Award is designed to support exceptionally creative new investigators conducting innovative and high-impact research, as part of the NIH Common Fund’s High-Risk, High-Reward program. The original focus of her research was on Lassa fever, a related but distinct hemorrhagic disease. When the Ebola outbreak began, she shifted her research focus to address this pressing challenge.

“Dr. Sabeti’s New Innovator Award provided flexibility to quickly adjust her research when the 2014 Ebola outbreak began,” said James M. Anderson M.D., Ph.D. director of the Division of Program Coordination, Planning and Strategic Initiatives at NIH. “This exemplifies how the High-Risk, High- Reward program allows researchers to tackle the most challenging and urgent scientific questions.”

The NIH Common Fund supports a series of exceptionally high impact research programs that are broadly relevant to health and disease. Common Fund programs are designed to overcome major research barriers and pursue emerging opportunities for the benefit of the biomedical research community at large. The research products of the Common Fund programs are expected to catalyze disease-specific research supported by the NIH Institutes and Centers. To learn more about the NIH Common Fund, visit http://commonfund.nih.gov.

About the National Institutes of Health (NIH): NIH, the nation’s medical research agency, includes 27 Institutes and Centers and is a component of the U.S. Department of Health and Human Services. NIH is the primary federal agency conducting and supporting basic, clinical, and translational medical research, and is investigating the causes, treatments, and cures for both common and rare diseases. For more information about NIH and its programs, visit www.nih.gov.

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SCV NewsBreak
LOCAL NEWS HEADLINES
Tuesday, Sep 18, 2018
School Issues Warning After Suspect Tries to Lure Student
Sierra Vista Junior High School parents were notified Monday about an incident of a male suspect attempting to lure a student.
Monday, Sep 17, 2018
Monday, Sep 17, 2018
La Crescenta Motorcyclist Dies in I-5 Collision
Matthew L. Fielding, 25, of La Crescenta, was killed when his motorcycle collided with a car on Interstate 5 in the Newhall Pass on Sunday morning, according to the CHP.
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1863 - Gen. Edward F. Beale loans money to A.A. Hudson and Oliver P. Robbins to erect toll house in Newhall Pass [story]
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