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Potential therapy for the Sudan strain of Ebola may contain some future outbreaks
Ebola is a rare but deadly disease that exists as five strains, none of which has approved therapies. One of the most lethal strains is the Sudan Ebolavirus (SUDV). Although not the strain currently devastating West Africa, SUDV has caused widespread illness, even as recently as 2012. In a new study appearing in the journal ACS Chemical Biology, researchers report a possible therapy that could someday help treat patients infected with SUDV.
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Wellcome Trust announces emergency Ebola research initiative
The Wellcome Trust announced the emergency Ebola initiative, which includes contributions from partner funders, and which aims to support research that can swiftly begin to investigate new approaches to treating, preventing, and containing the disease during the current epidemic in West Africa. The initiative will also support research into the ethical challenges of testing experimental medicines during epidemics.
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Poll finds many in U.S. lack knowledge about Ebola and its transmission
Although the Centers for Disease Control and Prevention (CDC) reports no known cases of Ebola transmission in the United States, a Harvard School of Public Health poll released last week shows that four in ten (39 percent) adults in the United States are concerned that there will be a large outbreak in the United States, and a quarter (26 percent) are concerned that they or someone in their immediate family may get sick with Ebola over the next year.
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Southwest may face “megadrought” within century: Study
Due to global warming, scientists say, the chances of the southwestern United States experiencing a decade-long drought is at least 50 percent, and the chances of a “megadrought” — one that lasts up to thirty-five years — ranges from 20 to 50 percent over the next century. While the 1930s Dust Bowl in the Midwest lasted four to eight years, depending upon location, a megadrought can last more than three decades, which could lead to mass population migration on a scale never before seen in this country.
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U.S. Army researchers help fight Ebola in the field
U.S. Army researchers are working on developing vaccines for the deadly Ebola virus, as well as combating the spread of the virus and caring for those who are infected. The virus has now killed more than 1,000 in Sierra Leone, Guinea, Liberia, and Nigeria. Researchers from the Applied Diagnostics Branch, U.S. Army Medical Research Institute of Infectious Diseases (USAMRIID), along with researchers from Public Health Canada, helped develop the serum given recently to two U.S. medical workers, Dr. Kent Brantly and Nancy Writebol, who contracted the virus while working with patients infected by Ebola in West Africa, Schoepp said.
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Epidemic ethics: four lessons from the current Ebola outbreak
The extent of the current Ebola virus outbreak in West Africa has belatedly focused the attention of non-governmental organizations, local and Western governments, and international media. What we haven’t caught up with though, is the extent to which these outbreaks and their devastating effects are predictable and preventable. The spread of Ebola virus occurs because health infrastructure in the region is fragmented, under-resourced, or non-existent. And the therapeutic response to the illness is constrained by failure of markets to drive drug and vaccine development that would help the world’s poorest people.
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Cutting carbon emissions more than pays for itself with savings on health care spending
Just how large are the health benefits of cleaner air in comparison to the costs of reducing carbon emissions? MIT researchers looked at three policies achieving the same reductions in the United States, and found that the savings on health care spending and other costs related to illness can be big — in some cases, more than ten times the cost of policy implementation. The concluded that savings from healthier air can make up for some or all of the cost of carbon-reduction policies.
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Climate change makes Europe hospitable to Dengue fever
Dengue fever is a tropical disease caused by a virus that is spread by mosquitoes, with symptoms including fever, headache, muscle and joint pain. Each year, dengue infects fifty million people worldwide and causes approximately 12,000 deaths — mostly in South-east Asia, and the Western Pacific. Scientists say that Dengue fever could make headway in popular European holiday destinations if climate change continues on its predicted trajectory.
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Liberia quarantines area the size of Wales in an effort to contain Ebola spread
In an effort to control the spread of Ebola throughout West Africa, Liberia has quarantined areas at the epicenter of the epidemic. Experts say the quarantine is not likely to be effective because of two reasons: people inside and outside the quarantined areas – called “Unified Sectors” – still lack effective medical services, and the growing shortages of food and clean water inside the Unified Sectors will force people from inside those areas to go outside in search of food. The areas – which, combined, are the size of Wales — are too large to be effectively monitored.
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Ebola poses no risk in U.S.: Experts
Ebola has infected nearly 2,000 people in West Africa because the disease is spreading in populated areas with poor public health infrastructure, and where health workers might not be taking proper infection control procedures, such as wearing gloves, experts say. These experts note that Ebola can be contracted only from patients who have the symptoms, not those who are infected, and even then infection occurs only when coming into contact with bodily fluids. They say that SARS and the flu are more contagious than Ebola.
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Neumedicines receives $14m for acute radiation exposure countermeasures
Neumedicines receives $14 million from BARDA to support advanced development of HemaMax, including advanced GMP manufacturing activities and a Phase 2 clinical safety study in 200 healthy human volunteers. The company says its efficacy studies have shown that a single, low-dose, subcutaneous injection of HemaMax at twenty-four hours after exposure to lethal radiation increases survival by an average of more than 2-fold without any supportive care or antibiotics.
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Isolation: More countries sever trade, transportation links with Ebola-affected states
The World Health Organization (WHO) has called on governments not to impose sweeping bans on trade and travel on Ebola-affected countries. The organization’s urgent call followed the announcement by Kenya that it was joining a growing list of countries severing all trade and transportation links to the three west African countries most affected by Ebola – Guinea, Liberia, and Sierra Leone. Independently of government actions, many airlines have already stopped flying to and from the three countries. The disease has already killed at least 1,145 people in these three countries and in Nigeria.
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Three infected Liberian health workers receive rare Ebola serum
Three Liberian health care workers who have been infected with the Ebola virus while treating patients, have on Friday received a scarce experimental serum – Zmapp — at a hospital outside the national capital, Monrovia, the Liberian capital. This is the same serum given to two American workers, Dr. Kent Brantly and Nancy Writebol, who contracted Ebola while working at ELWA Hospital in Monrovia. Brantly and Writebol were evacuated to Emory University Hospital in Atlanta, where they have been showing promising signs of recovering from the disease. Mapp Biopharmaceutical of San Diego, which provided the drug, said the “available supply of ZMapp has been exhausted.”
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CHIKV Challenge: Forecasting the spread of infectious disease
Modeling the future spread of infectious diseases is extremely challenging. Many current infectious diseases models tend to be based on historic data. There are numerous sources of potentially useful data that could be incorporated into a forecast, but it is difficult to predict which will be most informative. One goal of DARPA’s Chikungunya virus (CHIKV) challenge is to inspire the creation of teams drawn from multiple disciplines, including not only specialists in public health and infectious disease, but also experts in mathematics, meteorology, entomology, computer science, and bioinformatics, among other fields. The teams will build models that predict the spread of the Chikungunya virus in the Americas. the products could be applied to other diseases and inform responses to emergencies.
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The CDC contracts Emergent BioSolutions for $18.9 million smallpox treatment
The CDC has contracted Emergent BioSolutions for the supply of Vaccinia Immune Globulin Intravenous (VIGIV) into the U.S. Strategic National Stockpile (SNS). VIGIV is a therapeutic licensed by the U.S. Food and Drug Administration (FDA) for the treatment of complications due to smallpox vaccination. The contract options are valued at $18.9 million over three years.
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More headlines
The long view
What We’ve Learned from Survivors of the Atomic Bombs
Q&A with Dr. Preetha Rajaraman, New Vice Chair for the Radiation Effects Research Foundation in Hiroshima and Nagasaki, Japan.
Combatting the Measles Threat Means Examining the Reasons for Declining Vaccination Rates
Measles was supposedly eradicated in Canada more than a quarter century ago. But today, measles is surging. The cause of this resurgence is declining vaccination rates.
Social Networks Are Not Effective at Mobilizing Vaccination Uptake
The persuasive power of social networks is immense, but not limitless. Vaccine preferences, based on the COVID experience in the United States, proved quite insensitive to persuasion, even through friendship networks.
Vaccine Integrity Project Says New FDA Rules on COVID-19 Vaccines Show Lack of Consensus, Clarity
Sidestepping both the FDA’s own Vaccines and Related Biological Products Advisory Committee and the CDC’s Advisory Committee on Immunization Practices (ACIP), two Trump-appointed FDA leaders penned an opinion piece in the New England Journal of Medicine to announce new, more restrictive, COVID-19 vaccine recommendations. Critics say that not seeking broad input into the new policy, which would help FDA to understand its implications, feasibility, and the potential for unintended consequences, amounts to policy by proclamation.
Are We Ready for a ‘DeepSeek for Bioweapons’?
Anthropic’s Claude 4 is a warning sign: AI that can help build bioweapons is coming, and could be widely available soon. Steven Adler writes that we need to be prepared for the consequences: “like a freely downloadable ‘DeepSeek for bioweapons,’ available across the internet, loadable to the computer of any amateur scientist who wishes to cause mass harm. With Anthropic’s Claude Opus 4 having finally triggered this level of safety risk, the clock is now ticking.”
“Tulsi Gabbard as US Intelligence Chief Would Undermine Efforts Against the Spread of Chemical and Biological Weapons”: Expert
The Senate, along party lines, last week confirmed Tulsi Gabbard as Director of National intelligence. One expert on biological and chemical weapons says that Gabbard’s “longstanding history of parroting Russian propaganda talking points, unfounded claims about Syria’s use of chemical weapons, and conspiracy theories all in efforts to undermine the quality of the community she now leads” make her confirmation a “national security malpractice.”