A key toxin associated with whooping cough helps the germs resist the human immune system and infect vaccinated populations. Discovery of this resistance mechanism could lead to potential new treatments for the disease, according to researchers at Penn State.
Whooping cough, or pertussis, is a highly contagious respiratory disease caused by the germ Bordetella pertussis. Whooping cough can occur at any age but is generally considered a childhood disease marked by severe spells of coughing and a characteristic whooping sound while inhaling. Though the widespread use of vaccines has helped reduce disease drastically, recent surveys reveal that the disease is increasingly being diagnosed in a large number of vaccinated adults, posing a serious health risk to unvaccinated children and infants.
"One of the great mysteries of pertussis is how it persists within populations despite high vaccination rates," says Eric Harvill, assistant professor of microbiology and infectious disease in the College of Agricultural Sciences.
Amitabh Avasthi | EurekAlert!
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Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.
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The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.
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