COVID-19 has now killed about as many Americans as the 1918-19 Spanish flu pandemic did — approximately 675,000.
A century ago the U.S. population was one-third of what it is today. This indicates that the flu had a much bigger, more lethal effect throughout the country. COVID-19 crisis is a tragedy in its own right, especially given the advances in science since then coupled with the failure to take maximum advantage of the vaccines available this time.
“Big pockets of American society — and, worse, their leaders — have thrown this away,” medical historian Dr. Howard Markel of the University of Michigan said of the opportunity to vaccinate everyone eligible by now.
Like the Spanish flu, the coronavirus may never entirely disappear from our midst. Instead, scientists hope it becomes a mild seasonal bug as human immunity strengthens through vaccination and repeated infection..
“We hope it will be like getting a cold, but there’s no guarantee,” said Emory University biologist Rustom Antia, who suggests an optimistic scenario in which this could happen over a few years.
For now, the pandemic still has the United States and other parts of the world in its grasp.
While the delta variant surge in new infections may have reached its peak, U.S. deaths still are running at over 1,900 a day on average, the highest level since early March, and the country’s overall toll stood at just over 674,000 as of midday Monday, according to data collected by Johns Hopkins University, though the real number is believed to be higher.
Winter may bring a new surge, with the University of Washington’s influential model projecting an additional 100,000 or so Americans will die of COVID-19 by Jan. 1, which would bring the overall U.S. toll to 776,000.
The 1918-19 influenza pandemic killed 50 million victims globally at a time when the world had one-quarter the population it does now. Global deaths from COVID-19 are more than 4.6 million.
The Spanish flu’s U.S. death toll is a rough guess, given the incomplete records of the era and the poor scientific understanding of what caused the illness. The 675,000 figure comes from the U.S. Centers for Disease Control and Prevention.
The recession of COVID-19 could happen if the virus begins to weaken as it mutates and more and more humans’ immune systems learn to attack it. Vaccination and surviving infection are the main ways the immune system improves. Breast-fed infants also gain some immunity from their mothers.
Under that optimistic scenario, school children would get mild illness that trains their immune systems. As they grow up, the children would carry the immune response memory, so that when they are old and vulnerable, the coronavirus would be no more dangerous than cold viruses.
The same goes for today’s vaccinated teens: Their immune systems would get stronger through the shots and mild infections.
“We will all get infected,” Antia predicted. “What’s important is whether the infections are severe.”
Something similar happened with the H1N1 flu virus, the culprit in the 1918-19 pandemic. It encountered too many people who were immune, and it also eventually weakened through mutation. H1N1 still circulates today, but immunity acquired through infection and vaccination has triumphed.
Getting an annual flu shot now protects against H1N1 and several other strains of flu. To be sure, the flu kills between 12,000 and 61,000 Americans each year, but on average, it is a seasonal problem and a manageable one.
Before COVID-19, the 1918-19 flu was universally considered the worst pandemic disease in human history. Whether the current scourge ultimately proves deadlier is currently unknown.
In many ways, the 1918-19 flu — which was wrongly named Spanish flu because it first received widespread news coverage in Spain — was worse. Spread by the mobility of World War I, it killed young, healthy adults in vast numbers. No vaccine existed to slow it, and there were no antibiotics to treat secondary bacterial infections. And, of course, the world was much smaller.
Travel and mass migrations threaten to increase the toll of the current pandemic. Much of the world is unvaccinated. And the coronavirus has been full of surprises.