How long does Covid virus hang in the air?

Transmission of COVID-19 from inhalation of virus in the air can occur at distances greater than six feet. Particles from an infected person can move throughout an entire room or indoor space. The particles can also linger in the air after a person has left the room – they can remain airborne for hours in some cases.

epa.gov - Indoor Air and Coronavirus (COVID-19) | US EPA

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What is the Cringiest game?

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Spread of COVID-19 occurs via airborne particles and droplets. People who are infected with COVID can release particles and droplets of respiratory fluids that contain the SARS CoV-2 virus into the air when they exhale (e.g., quiet breathing, speaking, singing, exercise, coughing, sneezing). The droplets or aerosol particles vary across a wide range of sizes – from visible to microscopic. Once infectious droplets and particles are exhaled, they move outward from the person (the source). These droplets carry the virus and transmit infection. Indoors, the very fine droplets and particles will continue to spread through the air in the room or space and can accumulate. Since COVID-19 is transmitted through contact with respiratory fluids carrying the infectious SARS-CoV-2 virus, a person can be exposed by an infected person coughing or speaking near them. They can also be exposed by inhaling aerosol particles that are spreading away from the infected person. Transmission of COVID-19 from inhalation of virus in the air can occur at distances greater than six feet. Particles from an infected person can move throughout an entire room or indoor space. The particles can also linger in the air after a person has left the room – they can remain airborne for hours in some cases. Someone can also be exposed via splashes and sprays of respiratory fluids directly onto their mucous membranes. Spread may also sometimes occur through contact with contaminated surfaces, though this route is now considered less likely. See Science and Technical Resources related to Indoor Air and Coronavirus (COVID-19) or Indoor Air and COVID-19 Key References and Publications for technical information. Though the risk of infection by breathing in particles carrying the virus generally decreases with distance from infected people and with time, some circumstances increase the risk of infection: Being indoors rather than outdoors, particularly in indoor environments where ventilation with outside air is inadequate Activities that increase emission of respiratory fluids, such as speaking loudly, singing, or exercising

Prolonged time of exposure (e.g. longer than a few minutes)

Crowded spaces, particularly if face coverings are inconsistently or improperly worn

There are straightforward steps that can be taken to reduce the potential for airborne transmission of COVID-19 and the focus of this material is on those measures. The layout and design of a building, as well as occupancy and type of heating, ventilation, and air conditioning (HVAC) system, can all impact potential airborne spread of the virus. Although improvements to ventilation and air cleaning cannot on their own eliminate the risk of airborne transmission of the SARS-CoV-2 virus, EPA recommends increasing ventilation with outdoor air and air filtration as important components of a larger strategy that may include physical distancing, wearing cloth face coverings or masks, surface cleaning , handwashing, and other precautions. Consult guidance from the Centers for Disease Control and Prevention (CDC) and local authorities on current guidelines on the use of masks.

Best practices recommended by the CDC can be found at:

Reduce Exposure to COVID-19 Using the Interactive Ventilation Tool Explore which ventilation practices could help reduce airborne virus particles when guests visit your home with the Centers for Disease Control and Prevention’s Interactive Ventilation Tool. To explore more detailed scenarios, see the National Institute of Standards and Technology expanded model: ViPER - Virus Particle Exposure in Residences. Please supplement this information with the latest advice from state, local, Tribal and federal agencies.

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What is the fastest selling book in history?

nytimes.com - 'Harry Potter' tale is fastest-selling book in history - The New York Times

LONDON — The seventh and final volume in the Harry Potter series has become the fastest-selling book in history, its publishers said Monday, with more than 11 million copies sold during the first 24 hours in three markets alone. U.S. sales of the eagerly awaited "Harry Potter and the Deathly Hallows" hit 8.3 million, comfortably beating the previous installment, "Harry Potter and the Half-Blood Prince," which posted sales of 6.9 million copies in the first day, the U.S. publisher, Scholastic, announced. In Britain, Bloomsbury sold a record 2.7 million copies of the final Potter book in the first 24 hours, up from just over two million for the previous Potter book. Bloomsbury said that nearly 400,000 copies of the English-language edition of the latest book were also bought in Germany. Thousands of Potter fans waited outside bookstores in major cities around the world over the weekend to get hold of the book, which answers the questions "Who dies at the end?" and, in particular, "Does Harry survive?"

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