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A New Covid Mystery Why haven’t cases started rising again in the U.S.?


06 Apr 2022

To many people’s surprise — including mine — new Covid-19 cases in the U.S. have not begun to rise. Over the past two weeks, they have held roughly steady, falling about 1 percent, even as the highly contagious BA.2 subvariant of Omicron has become the dominant form of Covid in the U.S. Across much of Europe, by contrast, cases surged last month after BA.2 began spreading there, and many experts expected a similar pattern here. That hasn’t happened. “It has not taken off,” Michael Osterholm, a University of Minnesota epidemiologist, told me.


COVID-19 takes serious toll on heart health—a full year after recovery


25 Mar 2022

From very early in the pandemic, it was clear that SARS-CoV-2 can damage the heart and blood vessels while people are acutely ill. Patients developed clots, heart inflammation, arrhythmias, and heart failure. Now, the first large study to assess cardiovascular outcomes 1 year after SARS-CoV-2 infection has demonstrated that the virus’ impact is often lasting. In an analysis of more than 11 million U.S. veterans’ health records, researchers found the risk of 20 different heart and vessel maladies was substantially increased in veterans who had COVID-19 1 year earlier, compared with those who didn’t. The risk rose with severity of initial disease and extended to every outcome the team examined, including heart attacks, arrhythmias, strokes, cardiac arrest, and more. Even people who never went to the hospital had more cardiovascular disease than those who were never infected.


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.




Articles


How the Novavax Vaccine Works


03 Feb 2021

The Maryland-based company Novavax has developed a protein-based coronavirus vaccine called NVX-CoV2373. The vaccine produced strikingly high levels of antibodies in early clinical trials.




Evaluation of Cloth Masks and Modified Procedure Masks as Personal Protective Equipment for the Public During the COVID-19 Pandemic


19 Jan 2021

Severe acute respiratory syndrome coronavirus 2 (SARS- CoV-2), the cause of coronavirus disease 2019 (COVID- 19), is a transmissible virus that infects the upper and lower respiratory tract, leading to a high viral titer in saliva and respiratory secretions.




COVID-19 as the Leading Cause of Death in the United States


12 Jan 2021

The current exponential increase in coronavirus dis- ease 2019 (COVID-19) is reaching a calamitous scale in the United States, potentially overwhelming the health care system and causing substantial loss of life.




Feds Authorize $22 Billion to Boost Vaccine Rollout


11 Jan 2021

The CDC will send $3 billion to the states to boost a lagging national COVID-19 vaccination program.




COVID-19 Immunity Could Last Longer Than 8 Months, Study Says


08 Jan 2021

Certain antibodies and memory cells likely last more than 8 months after someone has contracted the coronavirus, especially if they have a strong immune response to COVID-19, according to a new study published Wednesday in Science.




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