>"The spread of the Omicron variant has given scientists an unsettling answer: repeatedly, sometimes within months."

>"Scientists are exploring a theory suggesting that exposure to one respiratory virus helps the body fend off competing pathogens."

"The deaths were up 25 percent in 2020 compared with 2019, amid heightened stress factors and delayed treatment, according to a new report."

>"Un equipo de investigadores en Atlanta, Estados Unidos, tiene la tarea de contestar esa pregunta."

"David Bennett Sr. had received a heart from a genetically modified pig, a procedure that may yet offer hope to millions of Americans needing transplants."

>"The Supreme Court will hear from two convicted pill mill doctors in cases that could have significant implications for physicians’ latitude to prescribe addictive painkillers."

"The nation’s three largest drug distributors and a major pharmaceutical manufacturer announced Friday that a supermajority of states and localities had accepted the terms of their $26 billion offer to settle thousands of civil claims _...Read More_

>"With the virus widespread in white-tailed deer, scientists wonder which animals might be next."

"The agency threw out previous recommended limits on doses but encouraged “nonopioid therapies” wherever possible."

"The Centers for Disease Control and Prevention on Thursday night published new data on the risks of hospitalization and death from Covid-19 among people who are unvaccinated and vaccinated, with or without booster doses."

"For the past year, scientists have been looking for the source of strange coronavirus sequences that have appeared in the city’s wastewater."

"After a frenetic few weeks when the Omicron variant of the coronavirus seemed to infect everyone, including the vaccinated and boosted, the United States is finally seeing encouraging signs."

As nurses and doctors struggle with a record-breaking wave of Omicron cases, evolutionary biologists are engaged in a struggle of their own: figuring out how this world-dominating variant came to be.

"There’s a mystery here that someone has to figure out." Thirteen of Omicron’s mutations should have hurt the variant’s chances of survival. Instead, they worked together to make it thrive. Scientists are still trying to understand _...Read More_