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Obesity Threatens Effectiveness of Any COVID Vaccine

For a world crippled by the coronavirus, salvation hinges on a vaccine.

But in the United States, where at least 4.6 million people have been infected and nearly 155,000 have died, the promise of that vaccine is hampered by a vexing epidemic that long preceded COVID-19: obesity.

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Why the Coronavirus is More Likely to ‘Superspread’ Than the Flu

For a spiky sphere just 120 nanometers wide, the coronavirus can be a remarkably cosmopolitan traveler.

Spewed from the nose or mouth, it can rocket across a room and splatter onto surfaces; it can waft into poorly ventilated spaces and linger in the air for hours. At its most intrepid, the virus can spread from a single individual to dozens of others, perhaps even a hundred or more at once, proliferating through packed crowds in what is called a superspreading event.

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Ohio governor’s COVID-19 results show tests imperfections

WASHINGTON (AP) — Ohio Gov. Mike DeWine’s positive-then-negative test results for the coronavirus are a reminder that no test is definitive.

The governor tested positive using a rapid test Thursday, before testing negative later in the day using a more sensitive laboratory-developed test. He was tested because he was going to meet with President Donald Trump during his visit to the state.

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New study on Asymptomatic People Carrying the Coronavirus in High Amounts

Of all the coronavirus’s qualities, perhaps the most surprising has been that seemingly healthy people can spread it to others. This trait has made the virus difficult to contain, and continues to challenge efforts to identify and isolate infected people.

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