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Positive results reported from single dose anthrax vaccine studies
Immunovaccine and Pfenex announced positive results from anthrax challenge studies in rabbits using Pfenex’s mutant recombinant Protective Antigen (mrPA) formulated with Immunovaccine’s DepoVax delivery system. Data demonstrates 100 percent protection against a lethal anthrax challenge in animals after vaccination with as little as 0.33 microgram of mutant recombinant Protective Antigen. Dose response observed in the first twenty-eight days following vaccination.
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Scientists learn how Marburg virus grows in cells
Infections with Marburg virus lead to death in as many as 90 percent of those infected. Once restricted to Africa, cases of the virus have been identified in travelers from Europe and the United States, making effective prevention and treatment a top biodefense priority. Study suggests targeting molecular interaction of virus and host protein may arrest this lethal virus.
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Synthetic biology makes bioweapons easier to make
Scientists and policy makers are no longer unconditionally promoting scientific innovation for fear that current and future biological breakthroughs may lead to dangerous applications. Traditionally, government-backed institutions and pharmaceutical firms fueled biological innovation, but today, the barriers that limited innovation to those institutions are diminishing. The low cost and significantly reduced level of necessary expertise have provided anyone interested in developing biological technology the tools to do so. Synthetic biology, the design and engineering of biological devices and systems, has given terrorists the capability to launch attacks using synthetic organisms without detection.
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Faster anthrax detection could speed bioterror response
The fall 2011 anthrax attacks cost $3.2 million in cleanup and decontamination. At the time, no testing system was in place that officials could use to screen the letters. Currently, first responders have tests that can provide a screen for dangerous materials in about 24-48 hours. Now, researchers have developed a new method for anthrax detection that can identify anthrax in only a few hours.
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Positive safety results Marburg drug candidate announced
Marburg hemorrhagic fever is a severe and potentially fatal disease in humans first recognized in 1967. It is caused by an RNA virus of the Filoviridae family and is understood to be endemic to Africa. The Marburg virus is classified as a Category A bioterrorism agent by the Centers for Disease Control and Prevention (CDC), and in 2006 was determined by DHS to be a material threat to national security and public health. There are currently no treatments for Marburg virus infection beyond supportive care. Cambridge, Massachusetts-based Sarepta Therapeutics, a developer of innovative RNA-based therapeutics, announced positive safety results from a Phase I multiple ascending dose study of AVI-7288 in healthy volunteers. AVI-7288 is the company’s lead drug candidate for the treatment of Marburg virus infection.
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Solution to drug resistance problem receives U.S. patent
Before the development of penicillin, people dropped like flies in response to minor infections. Even pimples could grow to boils that killed. One of the main killers prior to the discovery of antibiotics was tuberculosis. The deadly infectious disease that typically affects the lungs has returned – and has developed a resistance to the majority of antibiotics that would otherwise kill the tuberculosis bacteria. A Danish chemistry researcher has taken out a patent for a drug that can make previously multidrug-resistant bacteria once again responsive to antibiotics.
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Gaining better understanding of tularemia, aka “rabbit fever”
Tularemia, aka “rabbit fever,” is endemic in the northeastern United States, and is considered to be a significant risk to biosecurity — much like anthrax or smallpox — because it has already been weaponized in various regions of the world. Despite its importance for both public health and biodefense, F. tularensis pathogenesis is not entirely understood, nor is it fully understood how the organism persists in the environment.
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HHS to fund development of drug for bioterrorism, antimicrobial-resistant infections
HHS says that a public-private is partnership will advance the development of Carbavance, a new option to treat bioterrorism threats and antibiotic-resistant infections. The two bioterrorism Carbavance will address are melioidosis, also known as Whitmore’s disease, and glanders. Both melioidosis and glanders can become resistant to existing antibiotics. Already, with existing antibiotic treatments, approximately 40 percent of people who become ill from these bacteria die from the illness, and up to 90 percent die if not treated.
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New anthrax-killing virus could offer new ways to detect, treat, and decontaminate anthrax bacillus
From a zebra carcass on the plains of Namibia in Southern Africa, researchers have discovered a new, unusually large virus (or bacteriophage) which infects the bacterium that causes anthrax. The novel bacteriophage could eventually open up new ways to detect, treat, or decontaminate the anthrax bacillus and its relatives that cause food poisoning. Bacteriophages are often highly specific to a particular strain of bacteria, and when they were first discovered in the early twentieth century there was strong interest in them as antimicrobial agents. The discovery of penicillin and other antibiotics, however, eclipsed phage treatments in the West, although research continued in the Soviet Union.
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Florida teenager faces bioterrorism charges
Jesse Korff, 19, of Labelle, Florida is facing federal charges in New Jersey for selling poison through a black marketplace on the underground Internet. Law enforcement says from November 2013 through 15 January this year, Korff produced, stockpiled, and sold abrin for use as a weapon. The Center for Disease Control and Prevention (CDC) considers abrin, which is extracted from the seeds of the rosary pea plant, a subset of biological agents and toxins posing a threat to public health and safety. Small doses of abrin are potentially lethal to humans if ingested, inhaled, or injected.
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Bioterrorism fears lead scientists to withhold information on new strain of botulism
The recent discovery of a new strain of botulism, the first in forty years, has alarmed California state health officials. The discovery was published in the Journal of Infectious Diseases in October 2013 — but the genetic sequence of the botulism toxin was removed from the report. The decision to withhold the sequencing information took into consideration the fact that there is currently no antitoxin capable of treating an outbreak of botulism, and that it takes about one to two years to develop an antitoxin. Should the classified information reach the wrong hands, a bioweapon, which can be spread as an aerosol, could be used to cause mass-casualty epidemic.
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Preoccupation with bioterrorism hobbles preparations for natural spread of deadly viruses
Preoccupation with hypothetical bioterrorism attacks is leaving America more vulnerable to the threat of natural spread of deadly viruses. Since the 9/11 attacks, the federal government has poured billions of dollars to prevent and monitor threats of bioterrorism, yet the United States was ill-prepared for the swine flu outbreak of 2009. Experts say it is time to rebalance public health priorities so that preparations for the real threat of the outbreak of infectious diseases will not take a back seat to preparations for the more remote threat of bioterrorism.
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Lying in wait: Anthrax toxin may lurk for days in cells as a lingering threat
An anthrax infection can be fatal even when the infectious agent is no longer detected. The bacterium responsible for anthrax develops a strategy reminiscent of the Trojan horse tale. Its pathogenic factor is able to penetrate inside a cell in such a way that it becomes completely invisible to both the immune system and medical analysis. Furthermore, it manages to exit the cell several days later, and then it continues to poison other cells.
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Discovery points way to treatment of lethal toxin botulism
Botulinum neurotoxins are produced by Clostridium botulinum and cause the possibly fatal disease botulism, which impedes nerve cells’ ability to communicate with muscles and can lead to paralysis and respiratory failure. The botulinum toxin has also been identified as a potential biological weapon against a civilian population. Scientists have decoded a key molecular gateway for the toxin that causes botulism, pointing the way to treatments that can keep the food-borne poison out of the bloodstream.
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New detectors for chemical, biological threats
In the late 1990s, Sandia scientists developed a simple-to-use handheld chemical detector for the military, the MicroChemLab. Ever since, Sandia has improved such microfluidics- and microelectromechanical (MEMS) systems-based instruments that identify chemicals based on gas chromatography, or GC, and resonator-style instruments such as surface acoustic wave (SAW) detectors. The lab’s researchers are building on this sensor work to invent tiny detectors that can sniff out everything from explosives and biotoxins to smuggled humans.
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