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All Lupus Cases May Be Linked To a Common Virus, Study Finds

2 months ago
One of the most common viruses in the world could be the cause of lupus, an autoimmune disease with wide-ranging symptoms, according to a new study. From a report: Until now, lupus was somewhat mysterious: No single root cause of the disease had been found, and while there is no cure, there are medications that can treat it. The research, published in the journal Science Translational Medicine, suggests that Epstein-Barr virus -- which 95% of people acquire at some point in life -- could cause lupus by driving the body to attack its own healthy cells. It adds to mounting evidence that Epstein-Barr is associated with multiple long-term health issues, including other autoimmune conditions. As this evidence stacks up, scientists have accelerated calls for a vaccine that targets the virus. "If we now better understand how this fastidious virus is responsible for autoimmune diseases, I think it's time to figure out how to prevent it," said Dr. Anca Askanase, clinical director of the Lupus Center at Columbia University, who wasn't involved in the new research.

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Shenzhou-20 crew rides Shenzhou-21 home after debris strike

2 months ago
Original spacecraft deemed unsafe after cracks spotted in window

The Shenzhou-20 astronauts have returned to Earth on the Shenzhou-21 spacecraft after engineers deemed the Shenzhou-20 vehicle unsafe following a debris strike while it was docked to the Tiangong space station.…

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The Economic Impact of Brexit

2 months ago
Abstract of a working paper [PDF] published by NBER: This paper examines the impact of the UK's decision to leave the European Union (Brexit) in 2016. Using almost a decade of data since the referendum, we combine simulations based on macro data with estimates derived from micro data collected through our Decision Maker Panel survey. These estimates suggest that by 2025, Brexit had reduced UK GDP by 6% to 8%, with the impact accumulating gradually over time. We estimate that investment was reduced by between 12% and 18%, employment by 3% to 4% and productivity by 3% to 4%. These large negative impacts reflect a combination of elevated uncertainty, reduced demand, diverted management time, and increased misallocation of resources from a protracted Brexit process. Comparing these with contemporary forecasts -- providing a rare macro example to complement the burgeoning micro-literature of social science predictions -- shows that these forecasts were accurate over a 5-year horizon, but they underestimated the impact over a decade.

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