Greater viral load of SARS-CoV-2 variants of concern increases transmission potential

By quantifying the probability of infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in accordance with its viral load after a high-risk contact, researchers from France, Spain, and the United Kingdom show a substantial correlation of transmission probability and viral load increase in variants of concern. Their paper is published in the prestigious journal eLife. Even though aerosols […]

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Continuing the Fight to Improve Animal Welfare in the USDA Organic Program

Most people assume that products labeled “USDA Organic” come from farm animals who spend time outdoors, rooting and pecking in the grass. Though some organic farmers provide animals with meaningful outdoor access, a handful of large “fauxganic” companies are taking advantage of the vague animal welfare standards currently required by the National Organic Program to certify animals living in factory […]

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‘Lifelines’ to the vulnerable: Community health clinics to get $1B from Biden administration

The U.S. Department of Health and Human Services is awarding nearly $1 billion to community health centers across the nation, the Biden administration announced Tuesday. The funds are to support construction and renovation projects to expand facilities, as well as for mobile medical units, telehealth technology, freezers for vaccine storage and other capital needs related to COVID-19, according to the […]

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Counting cells may shed light on how cancer spreads

As tumors grow within an organ, they also release cells that enter the bloodstream. These cells can travel to other organs, seeding new tumors called metastases. MIT engineers have now developed a technique that, for the first time, allows them to measure the generation rate of these circulating tumor cells (CTCs) in mice. Their approach, which also reveals how long […]

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Vaccines effective in preventing symptomatic COVID-19 in health care workers

(HealthDay)—COVID-19 vaccines are highly effective under real-world conditions in preventing symptomatic disease in health care personnel, according to a study published online Sept. 22 in the New England Journal of Medicine. Tamara Pilishvili, Ph.D., from the U.S. Centers for Disease Control and Prevention in Atlanta, and colleagues assessed the effectiveness of COVID-19 vaccines in a real-world setting using data from […]

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Optogenetics Scientists Take Lasker Prize for Basic Research

Three researchers who have been integral to the discovery and development of using light-sensitive proteins to determine the function of neurons ­— and possibly control them — have won the 2021 Albert Lasker Basic Medical Research Award. The technique, known as optogenetics, has been adopted by laboratories around the globe to help assess what’s at play in neurological disease and […]

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