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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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