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  2. SARS-CoV-2 Omicron variant - Wikipedia

    A detected Omicron case was reported in the Czech Republic, from a traveler who spent time in Namibia. Canada also reported its first Omicron cases, with two from travelers from Nigeria, therefore becoming the first North American country to report an Omicron case. On 29 November, a positive case was recorded in Darwin, Australia.

  3. Face masks: what the data say - Nature

    The standard mask for use in health-care settings is the N95 respirator, which is designed to protect the wearer by filtering out 95% of airborne particles that measure 0.3 micrometres (µm) and ...

  4. 15 Best N95, KF94, and KN95 Face Masks (2022) | WIRED

    Here are the best disposable face masks—KF94, N95, KN95, respirators, surgical-style 3-ply, and kids size, and where you can find them.

  5. NSW rules out return to mask mandates amid Omicron wave

    A “soup” of Omicron variants, including BA.5, BA.2.75, XBB and BQ.1, is driving up case numbers across the country, all with the ability to escape immunity, according to NSW chief health ...

  6. Is it time to bring back COVID-19 mask rules? Provinces lag ...

    Stay up-to-date with your vaccinations including a fall COVID-19 booster and flu vaccine when eligible for the best protection against getting very sick from COVID-19 and influenza. Socialize outdoors when possible – outdoors is lower risk than indoors. Wear a high quality, well-fitting mask, especially indoors, and based on the setting and ...

  7. How to Protect Yourself and Others | CDC

    Respirators (for example, N95) provide higher protection than masks. When wearing a mask or respirator (for example, N95), it is most important to choose one that you can wear correctly, that fits closely to your face over your mouth and nose, that provides good protection, and that is comfortable for you.

  8. Is the COVID-19 Vaccine Safe? | Johns Hopkins Medicine

    Johns Hopkins Medicine’s mask safety guidelines have not changed, and we still require everyone to wear masks inside all of our facilities. Can I get COVID-19 from the vaccine? You cannot and will not get COVID-19 from any of the vaccines. The COVID-19 vaccines do not have any virus or other infectious material in them.