⁍ U.S. President Donald Trump’s gender, age and weight are all factors that make him more vulnerable to developing severe COVID-19.

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⁍ The probability is hard to assess precisely, however, since factors such as overall fitness and activity levels, pre-existing conditions and recent medical research can all make a significant difference.

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⁍ A working paper by the U.S. National Bureau of Economic Research published in July put an infected but otherwise healthy 70- to 79-year-old’s risk of dying from COVID-19 at 4.6%, regardless of gender.

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– President Trump’s weight, age, and gender all add up to a higher risk of dying from a respiratory illness known as coronavirus, experts say. A working paper by the US National Bureau of Economic Research published in July put an infected but otherwise healthy 70- to 79-year-old’s risk of dying from COVID-19 at 4.6%, regardless of gender, regardless of how old he is, Reuters reports. A professor of risk and an expert in statistics at Britain’s Cambridge University cites a COVID-19 survival calculator that put the mortality rate for an otherwise healthy 74-year-old white man with COVID-19 during the peak of the pandemic in Britain earlier this year at 3% to 4%. That risk would now “presumably be somewhat less,” he says, as doctors around the world have gained experience in treating the disease. Trump’s gender, age, and weight are all factors that make him more vulnerable to developing severe COVID-19, experts say. But Naveed Sattar, a professor of metabolic medicine at the University of Glasgow, notes Trump has no reported chronic conditions and is reasonably active, which may offset some of the risks. The CDC data also do not take into account the state-of-the-art care that the president is likely to receive. “I would advise them: Do not deviate from your standard protocol—because that’s when mistakes happen and you’re starting to experiment,” says Bharat Pankhania, senior clinical lecturer at Britain’s University of Exeter Medical School. “This is not a time or place to experiment, just because he happens to be the president.”