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Is It Flu, COVID-19, Allergies, or a Cold?


12 Jan 2022

Feeling sick can be especially concerning these days. Could your sniffles be caused by COVID-19? Or the flu? A cold? Or maybe allergies? Determining the cause of an illness can be tricky because many share some symptoms. They can leave you sniffling, coughing, and feeling tired. But there are important differences.


Biomedical Research Leads Science’s 2021 Breakthroughs


04 Jan 2022

Breakthrough of the Year: AI-Powered Predictions of Protein Structure The biochemist Christian Anfinsen, who had a distinguished career at NIH, shared the 1972 Nobel Prize in Chemistry, for work suggesting that the biochemical interactions among the amino acid building blocks of proteins were responsible for pulling them into the final shapes that are essential to their functions. In his Nobel acceptance speech, Anfinsen also made a bold prediction: one day it would be possible to determine the three-dimensional structure of any protein based on its amino acid sequence alone. Now, with advances in applying artificial intelligence to solve biological problems—Anfinsen’s bold prediction has been realized.


The F.D.A. clears booster shots for 12- to 15-year-olds


03 Jan 2022

The Food and Drug Administration on Monday authorized booster doses of Pfizer-BioNTech’s coronavirus vaccine for 12- to 15-year-olds, a group that became eligible for initial shots in May.


Expecting a Surge; We look at the latest on Omicron.


16 Dec 2021

Get ready for the Omicron surge, and take it seriously. But remember that the vaccines appear to provide strong protection against what matters most: severe Covid illnesses. That’s my reading of experts’ reactions to the latest developments on the Omicron variant. Today, I will walk through them.


Latest on Omicron Variant and COVID-19 Vaccine Protection


14 Dec 2021

There’s been great concern about the new Omicron variant of SARS-CoV-2, the coronavirus that causes COVID-19. A major reason is Omicron has accumulated over 50 mutations, including about 30 in the spike protein, the part of the coronavirus that mRNA vaccines teach our immune systems to attack. All of these genetic changes raise the possibility that Omicron could cause breakthrough infections in people who’ve already received a Pfizer or Moderna mRNA vaccine.




Articles


Mix-and-match COVID vaccines trigger potent immune response


19 May 2021

Preliminary results from a trial of more than 600 people are the first to show the benefits of combining different vaccines.




Even Partial COVID-19 Vaccination Protects Nursing Home Residents


17 May 2021

A CDC analysis has shown that a single dose of the Pfizer-BioNTech COVID-19 vaccine protected medically vulnerable nursing home residents as well as it did general adult populations that were evaluated in other efficacy and effectiveness studies.




Delayed Localized Hypersensitivity Reactions to the Moderna COVID-19 Vaccine


12 May 2021

The Moderna COVID-19 vaccine may cause a delayed localized hypersensitivity reaction with a median latency to onset of 7 days after vaccine administration. This pruritic and variably tender reaction has a median duration of 5 days, but may persist for up to 21 days, and may occur again and sooner after the second vaccine dose; no serious adverse events were observed in association with this cutaneous reaction to the Moderna COVID-19 vaccine.




The epidemiological impact of the NHS COVID-19 App


12 May 2021

The COVID-19 pandemic has seen digital contact tracing emerge around the world to help prevent spread of the disease. A mobile phone app records proximity events between app users, and when a user tests positive for COVID-19, their recent contacts can be notified instantly. Theoretical evidence has supported this new public health intervention1-6, but its epidemiological impact has remained uncertain7. Here we investigated the impact of the NHS COVID-19 app for England and Wales, from its launch on 24 September 2020 through to the end of December 2020. It was used regularly by approximately 16.5 million users (28% of the total population), and sent approximately 1.7 million exposure notifications: 4.4 per index case consenting to contact tracing. We estimated that the fraction of app-notified individuals subsequently showing symptoms and testing positive (the secondary attack rate, SAR) was 6.0%, comparable to the SAR for manually traced close contacts. We estimated the number of cases averted by the app using two complementary approaches. Modelling based on the notifications and SAR gave 284,000 (108,000-450,000), and statistical comparison of matched neighbouring local authorities gave 594,000 (317,000-914,000). Roughly one case was averted for each case consenting to notification of their contacts. We estimated that for every percentage point increase in app users, the number of cases can be reduced by 0.8% (modelling) or 2.3% (statistical analysis). These findings provide evidence for continued development and deployment of such apps in populations that are awaiting full protection from vaccines.




Preliminary Findings of mRNA Covid-19 Vaccine Safety in Pregnant Persons


22 Apr 2021

BACKGROUND Many pregnant persons in the United States are receiving messenger RNA (mRNA) coronavirus disease 2019 (Covid-19) vaccines, but data are limited on their safety in pregnancy. CONCLUSIONS Preliminary findings did not show obvious safety signals among pregnant persons who received mRNA Covid-19 vaccines. However, more longitudinal follow-up, including follow-up of large numbers of women vaccinated earlier in pregnancy, is necessary to inform maternal, pregnancy, and infant outcomes.




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