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Doctors examining the lungs of people killed by COVID-19 think they ve figured out just what makes the disease so deadly, and why many survivors continue to suffer the effects for months afterwards.
And a separate research team has found COVID-19 can run riot throughout the body, raising a patient s risk of death for at least several months after they think they ve gotten better.
The SARS-CoV-2 virus, which causes the disease, appears to trigger the immune system to overproduce a particular type of immune cell which sends inflammation into overdrive, preventing repair cells from doing their job and leaving the lungs permanently damaged.
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Adamaged drainage system in the brain might be behind the spotty performance of some Alzheimer’s therapies, according to a study published April 28 in
Nature. Mice modeling the neurodegenerative disorder that received plaque-busting antibodies along with a treatment to stimulate the growth of lymphatic vessels in the brain saw many of their symptoms reversed. Mice with damaged lymphatics, on the other hand, didn’t respond as well to the antibodies. This suggests that dysfunctional lymphatics might hinder the performance of antibody-based immunotherapy, an approach that has had mixed results in clinical trials among Alzheimer’s patients.
“Whenever a paper provides us with a novel way to look at Alzheimer’s, such as this one does . . . it opens up a world of possibilities,” says Gabrielle Britton, a neuroscientist at the Instituto de Investigaciones Científicas y Servicios de Alta Tecnología in Panama who was not involved in the research. “The m
Some states and school systems question the need to stay home, arguing that few students get sick and that the missed days in the classroom take a toll.
Some schools skip student quarantines as guidelines loosen
Donna St. George, The Washington Post
May 2, 2021
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1of2Eli Pytlinski is a student at Adena Elementary School in West Chester, Ohio.Photo for The Washington Post by Amy PowellShow MoreShow Less
2of2Lakota Local Schools Superintendent Matt Miller stands outside Adena Elementary School in West Chester, Ohio, on Friday, April 30, 2021.Photo for The Washington Post by Amy PowellShow MoreShow Less
In the northern suburbs of Cincinnati, Superintendent Matt Miller kept school doors open. But the coronavirus kept pushing students out. In the fall semester, he counted 5,172 student quarantines.
It meant a constant jostling of teaching and learning.