coronavirus

Florida coronavirus cases jump 50% as surge continues

Florida coronavirus cases jump 50% as surge continues

Signage stands at the ready (foreground) in case COVID-19 testing at Barnett Park reaches capacity, as cars wait in line in Orlando, Fla., Thursday, July 29, 2021. The line stretched through the park for more than a mile out to West Colonial Drive near the Central Florida Fairgrounds. Orange County is under a state of …

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Effectiveness of face masks against particles similar in size to coronavirus

Effectiveness of face masks against particles similar in size to coronavirus

Seshadri Ramkumar and graduate student, Mirza Khyum, in front of the Fractional Efficiency Filter Tester. Credit: Texas Tech University On Tuesday, July 27, the Centers for Disease Control and Prevention (CDC) issued new mask guidelines, recommending that Americans resume wearing masks indoors in areas with high coronavirus transmission, regardless of vaccination status. While vaccinations reduce …

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Prevention of coronavirus infection spread through aerosols

Prevention of coronavirus infection spread through aerosols

Credit: Unsplash/CC0 Public Domain As the development of the COVID-19 pandemic to date has shown: aerosols contribute significantly to the occurrence of infection—and combating them can significantly reduce a resurgence of infection levels. The question of effective protective measures will become acute in the autumn, if not before: seasonal factors, new virus variants, declining immunity …

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Fauci says US headed in 'wrong direction' on coronavirus

Fauci says US headed in ‘wrong direction’ on coronavirus

Top infectious disease expert Dr. Anthony Fauci responds to accusations by Sen. Rand Paul, R-Ky., as he testifies before the Senate Health, Education, Labor, and Pensions Committee, on Capitol Hill in Washington, Tuesday, July 20, 2021. Cases of COVID-19 have tripled over the past three weeks, and hospitalizations and deaths are rising among unvaccinated people. …

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Iran's daily new coronavirus infections hit another high

Iran’s daily new coronavirus infections hit another high

A woman wearing protective face mask to help prevent the spread of the coronavirus walks on a sidewalk in southern Tehran, Iran, Tuesday, July 20, 2021. Iran on Tuesday broke another record in the country’s daily new coronavirus cases, even as Tehran and its surroundings went into lockdown, a week-long measure imposed amid another surge …

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Researchers develop model to estimate false-negative rate for COVID-19 tests

Study on coordinated sampling helps in the fight against the coronavirus pandemic

Credit: Unsplash/CC0 Public Domain A new study led by the U.S. Geological Survey outlines a means to better estimate COVID-19 occurrence and trends in populations. Currently, COVID-19 testing is primarily limited to self-selected individuals, many of whom are symptomatic or have had contact with someone who is symptomatic. While these tests are useful for individual …

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Delta variant makes COVID-19 vaccine even more important, even if you've already had the coronavirus

Delta variant makes COVID-19 vaccine even more important, even if you’ve already had the coronavirus

Credit: CC0 Public Domain As someone who studies immune responses to respiratory infections, I’ve watched news of the emerging coronavirus variants with concern. I wondered whether vaccination or previous infection would provide protection against SARS-CoV-2 strains, especially the new, highly transmissible delta variant, which has rapidly spread to at least 70 countries. A person can …

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Blood test can track the evolution of coronavirus infection

Blood test can track the evolution of coronavirus infection

Recreation of the SARS-CoV-2 virus. Credit: Pixabay A blood test that quantifies the protein ACE2, the cellular protein that allows entry of the coronavirus into cells, as well as ACE2 fragments produced as a result of interaction with the virus, could be a simple and effective method for monitoring SARS-CoV-2 infection, according to a study …

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Sydney coronavirus cases spike as lockdown falters

Sydney coronavirus cases spike as lockdown falters

Credit: Pixabay/CC0 Public Domain Australia reported another spike in new coronavirus cases Monday, as a lockdown in the country’s largest city Sydney failed to halt a rapidly growing cluster of cases. Health authorities reported 112 cases in Sydney in the last 24 hours, a record for this wave of infections, despite a citywide lockdown that …

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Russia reports over 24,000 virus-related deaths in February

Russia sets latest pandemic high for coronavirus deaths

Credit: Unsplash/CC0 Public Domain Russia reported 752 coronavirus deaths on Saturday, a national record of pandemic-related fatalities over a 24-hour period, as the country battles a third wave. Russia has now set seven new pandemic highs for COVID-19 deaths in the last 12 days as it fights a surging outbreak driven by the highly infectious …

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