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Covid-19 Live Updates


04 Jan 2021

Covid-19 Live Updates


Maintaining Safety with SARS-CoV-2 Vaccines


30 Dec 2020

To date, the development of mRNA vaccines for the prevention of infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been a success story, with no serious concerns identified in the ongoing phase 3 clinical trials


An Essential Worker’s List of Pandemic Chores for the Kids


29 Dec 2020

Sorry I had to leave before you woke up. You’re right, it isn’t fair. Please empty the dishwasher today. And brush your teeth. Remember to feed the dog. He will die if no one remembers to do this.


Phase 3 trial of Novavax investigational COVID-19 vaccine opens


28 Dec 2020

The Phase 3 trial of another investigational coronavirus disease 2019 (COVID-19) vaccine has begun enrolling adult volunteers. The randomized, placebo-controlled trial will enroll approximately 30,000 people at approximately 115 sites in the United States and Mexico. It will evaluate the safety and efficacy of NVX-CoV2373, a vaccine candidate developed by Novavax, Inc., of Gaithersburg, Maryland. Novavax is leading the trial as the regulatory sponsor.


Older Adults’ Perspectives on a COVID-19 Vaccine


23 Dec 2020

As of December 4, 2020, cases of novel coronavirus disease 2019 (COVID-19) have topped 14.3 million in the US with nearly 300 000 associated deaths. While mitigation measures such as social distancing, use of face coverings, and avoidance of crowds can help keep case counts in check, a safe and effective COVID-19 vaccine will be essential to ending the pandemic.




Articles


Oral Simnotrelvir for Adult Patients with Mild-to-Moderate Covid-19


08 Jan 2024

BACKGROUND Simnotrelvir is an oral 3-chymotrypsin–like protease inhibitor that has been found to have in vitro activity against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and potential efficacy in a phase 1B trial. CONCLUSIONS Early administration of simnotrelvir plus ritonavir shortened the time to the resolution of symptoms among adult patients with Covid-19, without evident safety concerns. (Funded by Jiangsu Simcere Pharmaceutical; ClinicalTrials.gov number, NCT05506176. opens in new tab.)




SARS-CoV-2 infection triggers pro-atherogenic inflammatory responses in human coronary vessels


28 Sep 2023

Patients with coronavirus disease 2019 (COVID-19) present increased risk for ischemic cardiovascular complications up to 1 year after infection. Although the systemic inflammatory response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection likely contributes to this increased cardiovascular risk, whether SARS-CoV-2 directly infects the coronary vasculature and attendant atherosclerotic plaques remains unknown. Here we report that SARS-CoV-2 viral RNA is detectable and replicates in coronary lesions taken at autopsy from severe COVID-19 cases. SARS-CoV-2 targeted plaque macrophages and exhibited a stronger tropism for arterial lesions than adjacent perivascular fat, correlating with macrophage infiltration levels. SARS-CoV-2 entry was increased in cholesterol-loaded primary macrophages and dependent, in part, on neuropilin-1. SARS-CoV-2 induced a robust inflammatory response in cultured macrophages and human atherosclerotic vascular explants with secretion of cytokines known to trigger cardiovascular events. Our data establish that SARS-CoV-2 infects coronary vessels, inducing plaque inflammation that could trigger acute cardiovascular complications and increase long-term cardiovascular risk.




Long-Term Dysfunction of Taste Papillae in SARS-CoV-2


06 Sep 2023

Abstract BACKGROUND We sought to determine whether ongoing taste disturbance in the post-acute sequelae of coronavirus disease 2019 is associated with the persistent virus in primary taste tissue. CONCLUSIONS Our data show a temporal association in patients between functional taste, taste papillae morphology, and the presence of SARS-CoV-2 and its associated immunological changes. (Funded by Intramural Research Program/National Institute on Aging/National Institute of Allergy and Infectious Diseases/National Institutes of Health; ClinicalTrials.gov numbers NCT03366168 and NCT04565067.)




Uninsured and Not Immune — Closing the Vaccine-Coverage Gap for Adults


20 Jul 2023

The U.S. Covid-19 vaccination strategy was simple: get safe and effective vaccines into arms as quickly as possible by making them free and accessible. This strategy worked: more than 670 million Covid-19 vaccine doses had been administered to more than 270 million Americans by the end of the national public health emergency.




Strategic Masking to Protect Patients from All Respiratory Viral Infections


06 Jul 2023

The end of the public health emergency in the United States is a richly symbolic milestone in the course of the SARSCoV-2 pandemic. During the height of the pandemic, the virus killed millions of people worldwide, upended lives, and radically altered health care. One of the most visible changes in health care was the introduction of universal masking, a measure designed to reduce SARS-CoV-2 transmission in health care facilities by applying source control and exposure protection to everyone in the facility. With the end of the public health emergency, however, many health care centers in the United States are now stopping universal masking and reverting to requiring masking in only limited circumstances (e.g., when health care workers are caring for patients with potentially contagious respiratory infections).




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