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The White House said it is offering a second round of free coronavirus tests to all Americans.


07 Mar 2022

The White House on Monday said that it would begin offering a second round of four free at-home coronavirus tests to all American households, delivering on a pledge President Biden made last week in his State of the Union address, when he framed the offer as part of a broader effort to stay ahead of possible outbreaks and new variants.


Covid May Cause Changes in the Brain, New Study Finds


07 Mar 2022

Brain scans before and after infection showed more loss of gray matter and tissue damage, mostly in areas related to smell, in people who had Covid than in those who did not.


COVID-19 vaccines linked to small increase in menstrual cycle length


25 Jan 2022

At a Glance Women who received COVID-19 vaccines had a less than one-day increase in the length of their menstrual cycles around the time of their doses. The findings suggest that women may have a slightly longer menstrual cycle after COVID-19 vaccination, but the change is temporary and within the range of normal variation.


Deltacron: the story of the variant that wasn’t


21 Jan 2022

News of a ‘super variant’ combining Delta and Omicron spread rapidly last week, but researchers say it never existed and the sequences may have resulted from contamination. On 7 January, virologist Leondios Kostrikis announced on local television that his research group at the University of Cyprus in Nicosia had identified several SARS-CoV-2 genomes that featured elements of both the Delta and Omicron variants.


How One Change to The Coronavirus Spike Influences Infectivity


18 Jan 2022

Since joining NIH, I’ve held a number of different leadership positions. But there is one position that thankfully has remained constant for me: lab chief. I run my own research laboratory at NIH’s National Institute of Dental and Craniofacial Research (NIDCR). My lab studies a biochemical process called O-glycosylation. It’s fundamental to life and fascinating to study. Our cells are often adorned with a variety of carbohydrate sugars. O-glycosylation refers to the biochemical process through which these sugar molecules, either found at the cell surface or secreted, get added to proteins. The presence or absence of these sugars on certain proteins plays fundamental roles in normal tissue development and first-line human immunity. It also is associated with various diseases, including cancer.




Articles


Over Half of COVID Transmission May Occur via Asymptomatic People


07 Jan 2021

As COVID-19 cases surge and vaccinations lag, health authorities continue to seek additional ways to mitigate the spread of the novel coronavirus.




SARS-CoV-2 Transmission From People Without COVID-19 Symptoms


07 Jan 2021

IMPORTANCE Severeacuterespiratorysyndromecoronavirus2(SARS-CoV-2),theetiologyof coronavirus disease 2019 (COVID-19), is readily transmitted person to person. Optimal control of COVID-19 depends on directing resources and health messaging to mitigation efforts that are most likely to prevent transmission, but the relative importance of such measures has been disputed.




Sorting Out Whether Vitamin D Deficiency Raises COVID-19 Risk


06 Jan 2021

One of the risk factors du jour for coronavirus disease 2019 (COVID- 19) has been vitamin D deficiency.




Emergence of a Highly Fit SARS-CoV-2 Variant


31 Dec 2020

Sarbecoviruses have emerged twice in the 21st century, causing a worldwide epidemic and pandemic.




U.S. Officials Say Covid-19 Vaccination Effort Has Lagged


30 Dec 2020

The distribution of vaccines in the United States has gotten off to a slower-than-expected start, federal health officials acknowledged in a news conference on Wednesday, though they also voiced confidence that the pace would accelerate in the coming weeks.




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