From Informed Comment
Trump's daily dog and pony show, which he holds at 6-8 pm every evening to catch audiences tuning in for the day's news and reach families after supper, took a dire turn on Monday. The big cable news networks irresponsibly just turn their screens over to Trump, who spews a litany of falsehoods that endanger people's lives. Make no mistake, cable news is behaving this way for ratings and entertainment value. Their executives don't give a fig that Trump is endangering the lives of very large numbers of people.
Ominously, Trump appeared Monday evening without the feisty and upright Dr. Anthony Fauci, perhaps the one trustworthy epidemiology expert on Trump's team. The NYT reports that White House aides are saying Trump is increasingly angry at Fauci's refusal to fall in line with the president's arrant falsehoods and ridiculous rants.
But it is more than a matter of personality. Fauci and the US medical establishment are devoted to saving lives. Trump is devoted to making a profit. Fauci favors a policy of isolating people from one another to keep the novel coronavirus from spreading so fast and infecting so many people that it overwhelms the medical system, which does not have enough respirators or intensive care units to deal with a pandemic.
Trump was somehow convinced to go along with this policy for two weeks, but now is increasingly restive. At his news conference on Monday, he kept saying that Fauci's cure was worse than the disease. Unfortunately for the country, Trump is a hotelier, and his own businesses are being badly hit by the pandemic. Moreover, leaks by aides to journalists allege that he is deathly afraid that a prolonged period of social isolation in the US will put the economy into a deep recession and sink any chance he had of being reelected.
He is therefore reverting to his ostrich-like policy of January, February, and the first part of March, during which he called the virus a "hoax," said there were only 15 cases, predicted it would disappear quickly, and generally denied that anything needed to be done. If in January he had ramped up testing the way South Korea has, and instituted contact tracing for those testing positive, our present lock-down could have been avoided. But Trump did not do those things.
He now wants to go back into denial mode, as Josh Dawsey, Yasmeen Abutaleb, Jeff Stein and John Wagnergo report at WaPo.
Trump keeps pointing to the number of people who will die from ordinary flu every year, and from suicide. The Centers for Disease Control estimates US flu deaths from last autumn to present as 23,000 59,000 (the estimate with a range is necessary because US flu surveillance is imperfect). In 2018 in the US there were 48,344. Trump actually went so far as to suggest that suicides could spike higher than coronavirus deaths because of depression from social isolation. In the past he has also mentioned the toll of auto crashes; in 2018, that death toll in the US was 36,560.
Trump's examples all have two things in common. First, they are instances in which there is a certain rate of death that society is willing to put up with. Measures could be taken to reduce auto collision deaths, but they would make cars more expensive or slow down traffic, and Trump is implicitly arguing that society has chosen to accept this death rate to avoid those costs.
Second, the examples he chose have nothing at all in common with the pandemic deaths, because a pandemic grows exponentially, whereas the deaths from the three causes Trump instanced are relatively stable year on year.
Trump is counting on his base not knowing the difference between a serial and an exponential progression. A serial progression goes 1, 2, 3, 4, 5, 6, etc. Thus, a little over a hundred people die on the road every day in the US on average, so the progression if we start on January 1 is 100, 200 on January 2, then 300, 400, 500, 600, 700, etc.
The coronavirus is new, and so the US population has no antibodies for it. When people meet a new disease, their t-cells cannot recognize it. The virus can therefore colonize the stricken person's cells to make more of themselves, and their immune system doesn't at first know how to fight back. After a while, the t-cells learn the shape of the invader and can therefore glom onto it and kill it. Influenza is an old disease and almost everyone has some immunity to it, which along with the annual vaccine, keeps it from growing exponentially.
But the novel coronavirus will grow exponentially if steps such as social isolation and large-scale testing and contact tracing are not implemented (China resorted more to the first, South Korea more to the second). Contact tracing means finding people who test positive and making them quarantine, but also going back and quarantining everyone they came into contact with.
Also, unlike the common flu, the coronavirus is much more contagious and about 20 times more deadly. The typical victim infects three other people. Just notionally, if we start at patient zero and day one, and imagine that the three new people were infected daily by each carrier, we'd get this progression: 1; 3; 9; 27; 81; 243; 729; 2,187; 6,561; 19,683; 59,049; 177,147; 531,441; 159,4323; 4,782,969; 14,348,907; 43,046,721; 129,140,163; 387,420,489. On Day 19, everyone in the United States would be exposed.
The reality is considerably more complex and substantially slower (the doubling time is more like six days), but you get the picture. An exponential progression does not look like auto collisions, or suicides, or influenza.
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