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COVID-19 Infected Many More Americans in 2020 than Official Tallies Show


07 Sep 2021

At the end of last year, you may recall hearing news reports that the number of COVID-19 cases in the United States had topped 20 million. While that number came as truly sobering news, it also likely was an underestimate. Many cases went undetected due to limited testing early in the year and a large number of infections that produced mild or no symptoms. Now, a recent article published in Nature offers a more-comprehensive estimate that puts the true number of infections by the end of 2020 at more than 100 million [1]. That’s equal to just under a third of the U.S. population of 328 million. This revised number shows just how rapidly this novel coronavirus spread through the country last year. It also brings home just how timely the vaccines have been—and continue to be in 2021—to protect our nation’s health in this time of the pandemic.


Vaccines prevented up to 140,000 COVID-19 deaths in U.S.


24 Aug 2021

Three highly effective COVID-19 vaccines are available in the U.S. These vaccines have been shown to slow the spread of the virus and reduce COVID-19 deaths. About half of the population has been fully vaccinated as of August 2021. But vaccination rates have varied across the country, with some states proceeding much faster than others.


U.S. to Advise Boosters for Most Americans 8 Months After Vaccination


18 Aug 2021

The Biden administration has decided that most Americans should get a coronavirus booster vaccination eight months after they received their second shot, and could begin offering third shots as early as the third week of September, according to administration officials familiar with the discussions.


How gut microbes could drive brain disorders


13 Aug 2021

Scientists are starting to work out how the gut microbiome can affect brain health. That might lead to better and easier treatments for brain diseases.


F.D.A. to Authorize Third Vaccine Dose for People With Weak Immune Systems


12 Aug 2021

The decision to expand the emergency use of both the Pfizer-BioNTech and Moderna vaccines is meant to help transplant recipients and others whose immune systems are similarly compromised.




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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