spread

(Newser) - Scientists are investigating minorities, but it's not how it sounds. So-called "super-spreaders" are a small group of people who, for whatever reason, turn out to be the major driver behind the spread of diseases, and scientists report in the Proceedings of the National Academy of Sciences that super-spreaders...

(Newser) - A protein linked to Alzheimer’s can run amok in the brain, affecting healthy tissue, scientists have found. All nerve cells contain the tau protein, but a “rogue form” can lead to protein clumps in cells, called neurofibrillary tangles, that are believed to play a major role in Alzheimer’...

(Newser) - Happiness is contagious and spreads through social networks in much the same way the flu does, says a landmark new study that followed the fate of 4,700 people over 20 years. The research shows that a person's happiness can lift the mood of loved ones, neighbors, and even strangers...