As reports this week from Scotland and Israel—where much or most of the population have gotten COVID jabs—confirm that vaccines largely prevent people from getting sick, another question is emerging: do they also block infection? A lot depends on the answer, experts say. If vaccines being rolled out worldwide ward off not only symptoms but […]
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Three-layer masks can block out at least 90% of virus particles
Wearing three layers of face coverings – such as a surgical mask with an extra layer of fabric – blocks 90% of infectious particles, experts say Some experts, such as Dr Anthony Fauci, have endorsed double- masking to protect against COVID-19 But wearing more than one mask can make it harder to breathe and increases […]
Researchers block metastasis-promoting enzyme, halt spread of breast cancer
In a breakthrough with important implications for the future of immunotherapy for breast cancer, UC San Francisco scientists have found that blocking the activity of a single enzyme can prevent a common type of breast cancer from spreading to distant organs. While studying a mouse model that replicates key features of early-stage human breast cancer, […]
Fear that uproar over gene-edited babies could block science
Scientists working on the frontiers of medicine fear the uproar over the reported births of gene-edited babies in China could jeopardize promising research into how to alter heredity to fend off a variety of disorders. Researchers are rapidly learning how to edit DNA to fight such conditions as Huntington’s, Tay-Sachs and hereditary heart disease, conducting […]
Drugs that block structural changes to collagen could prevent lung fibrosis
Scientists have found that it is the structure of collagen, rather than the amount, that leads to the devastating condition of lung fibrosis, according to a report in the journal eLife. The study provides the first evidence in humans that altered collagen structure affects tissue stiffness during progression of lung fibrosis and identifies a potential […]