PIZZA LUNCH PODCASTS
Uncovering the Complexity of Bartonellosis
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Beginning his career studying cat scratch disease, which is caused by a species of bacteria in the genus
Bartonella, Ed Breitschwerdt, a veterinarian and professor of medicine in infectious disease at the College of Veterinary Medicine at North Carolina State University, began to realize that this genus was rife with other species that can infect mammals; in 1993, he discovered a new species of
Bartonella that causes lupus-like symptoms in a dog named Tumbleweed.
Based on two decades of research, Dr. Breitschwerdt has shown that these bacteria can live in the bloodstream of mammals and are transmitted between them by a variety of insect vectors and by cat scratches. His work has linked
infection with a variety of chronic and acute symptoms that vary across species and can affect humans. But it hasn't been easy to study these infections: Once in the blood stream,
evades the immune system, is difficult to detect, and is easily misdiagnosed. Many questions remain about Bartonellosis.
Dr. Breitschwerdt goes into more depth with associate editor Katie L. Burke about his research on the bacteria Bartonella.
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VIDEO: How Hair Ice Grows
In 2013, American Scientist featured an article on odd ice formations on plant stems, including these curling ribbons of ice. One of the types of ice discussed in the article was hair ice—long, thin strands of ice that grow under quite specific conditions. The only problem is that a new study shows the theory put forth at the time—that gas pressure pushes the water out—isn’t correct... (click the link above to read more).
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