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What Is A Virus? What Is A Viral Infection?
A virus (from the Latin virus meaning toxin or poison) is a microscopic organism consisting of genetic material (RNA or DNA) surrounded by a protein, lipid (fat), or glycoprotein coat. Viruses are unique organisms because they cannot reproduce without a host cell. After contacting a host cell, a virus will insert genetic material into the host and take over the host"s functions. The cell, now infected, continues to reproduce, but it reproduces more viral protein and genetic material instead of its usual products. It is this process that earns viruses the classification of "parasite".
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Expert Available To Discuss CDC Report Showing Poison Deaths Surpass Motor Vehicle Traffic Death Rates Among Adults 34 To 56
Adults between the ages of 34 and 56 are at a greater risk of dying from poisonings than from motor vehicle accidents, according to a new report from the CDC.
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Supporting New Biotechs Using Incubator Network Created At Mission Bay
The California Institute of Quantitative Biosciences (QB3) has joined with the City of San Francisco and FibroGen Inc to launch the QB3 Mission Bay Incubator Network, to spur growth in the bioscience industry.
Sexual Health

Additional "Unsuspected" Breast Cancers Not Seen On Mammography Or Ultrasound Detected By Breast MRI

A total of 199 patients with newly diagnosed breast cancer underwent breast MRI. "We found additional, unsuspected cancers in the ipsilateral breast (the one that had already been diagnosed with cancer) in 16% of patients; we found cancers in the contralateral breast (the one that had not been diagnosed with cancer) in 4% of patients," said Petra J. Lewis, MD, lead author of the study. "These patients had already had bilateral mammography and these tumors had not been apparent on mammography," said Dr. Lewis. "The detection of an unsuspected tumor is critical. These additional tumors in nearly a fifth of patients are tumors that can potentially grow and not be diagnosed until they are much larger - affecting the health and survival of the patients," she said. "This study has been particularly helpful to us as clinicians because it gives us data we can discuss with patients when recommending breast MRI," said Dr. Lewis. This study appears in the May issue of the American Journal of Roentgenology. Heather Curry American Roentgen Ray Society


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