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  2. Silent hypoxia - Wikipedia

    en.wikipedia.org/wiki/Silent_hypoxia

    In COVID-19, the arterial and general tissue oxygen levels can drop without any initial warning.The chest x-ray may show diffuse pneumonia.Cases of silent hypoxia with COVID-19 have been reported for patients who did not experience shortness of breath or coughing until their oxygen levels had depressed to such a degree that they were at risk of acute respiratory distress (ARDS) and organ failure.

  3. Perception of infrasound - Wikipedia

    en.wikipedia.org/wiki/Perception_of_infrasound

    Infrasound sensitive fibers are found to be simple bipolar cells in the auditory ganglion with a diameter of 1.6-2.2 μm at the axon and 0.9-1.2 μm at the dendrites. [19] They originate in the apical end of the cochlea and they are located near fibers that transmit low frequency sounds in the acoustic range.

  4. Infrasound - Wikipedia

    en.wikipedia.org/wiki/Infrasound

    Infrasound wavelengths can be generated artificially through detonations and other human activity, or naturally from earthquakes, severe weather, lightning, and other sources. [73] Like forensic seismology , algorithms and other filter techniques are required to analyze gathered data and characterize events to determine if a nuclear detonation ...

  5. COVID variant HV.1 is still spreading. These are its most ...

    www.aol.com/news/covid-variant-hv-1-now...

    A new COVID-19 variant, HV.1, is now the dominant strain in the U.S. Here's what to know about HV.1 symptoms, transmission, and how it affects the new booster.

  6. Coronavirus diseases - Wikipedia

    en.wikipedia.org/wiki/Coronavirus_diseases

    Coronavirus diseases are caused by viruses in the coronavirus subfamily, a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, the group of viruses cause respiratory tract infections that can range from mild to lethal.

  7. An even more contagious COVID strain is 'just getting started ...

    www.aol.com/news/even-more-contagious-covid...

    The summer surge of the coronavirus subvariants nicknamed FLiRT has given way to ever more contagious strains, a key reason behind the current high levels of COVID in California and nationwide ...

  8. SARS-CoV-2 - Wikipedia

    en.wikipedia.org/wiki/SARS-CoV-2

    Human-to-human transmission of SARS‑CoV‑2 was confirmed on 20 January 2020 during the COVID-19 pandemic. [ 16 ] [ 39 ] [ 40 ] [ 41 ] Transmission was initially assumed to occur primarily via respiratory droplets from coughs and sneezes within a range of about 1.8 metres (6 ft).

  9. Human coronavirus OC43 - Wikipedia

    en.wikipedia.org/wiki/Human_coronavirus_OC43

    Human coronavirus OC43 [1] (HCoV-OC43) is a member of the species Betacoronavirus 1, which infects humans and cattle. [ 2 ] [ 3 ] The infecting coronavirus is an enveloped , positive-sense , single-stranded RNA virus that enters its host cell by binding to the N-acetyl-9-O-acetylneuraminic acid receptor . [ 4 ]