The Flu Can Kill Tens of Millions of People, Like it Did in 1918

St. Louis Red Cross Motor Corps personnel wear masks in October 1918 as they hold stretchers next to ambulances in preparation for victims of the flu epidemic. (Library of Congress via AP)
St. Louis Red Cross Motor Corps personnel wear masks in October 1918 as they hold stretchers next to ambulances in preparation for victims of the flu epidemic. (Library of Congress via AP)
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The Flu Can Kill Tens of Millions of People, Like it Did in 1918

St. Louis Red Cross Motor Corps personnel wear masks in October 1918 as they hold stretchers next to ambulances in preparation for victims of the flu epidemic. (Library of Congress via AP)
St. Louis Red Cross Motor Corps personnel wear masks in October 1918 as they hold stretchers next to ambulances in preparation for victims of the flu epidemic. (Library of Congress via AP)

The flu arrived as a great war raged in Europe, a conflict that would leave about 20 million people dead over four years.

In 1918, the flu would kill more than twice that number — and perhaps five times as many — in just 15 months. Though mostly forgotten, it has been called “the greatest medical holocaust in history.”

Experts believe between 50 and 100 million people were killed. More than two-thirds of them died in a single 10-week period in the autumn of 1918.

Never have so many died so swiftly from a single disease. In the United States alone, it killed about 675,000 in about a year — the same number who have died of AIDS in nearly 40 years.

As the country muddles through a particularly nasty flu season — one that the Centers for Disease Control says has killed 24 children in the first three weeks of January and 37 since the start of the flu season — the 1918 nightmare serves a reminder. If a virulent enough strain were to emerge again, a century of modern medicine might not save millions from dying.

“You think about how bad it was in 1918, and you think surely our modern medical technology will save us, but influenza is the Hollywood movie writer’s worst nightmare,” said Anne Schuchat, CDC’s deputy director, at a recent seminar on the 1918 pandemic. “We have many more tools than we had before, but they are imperfect tools.”

One hundred years ago, a third of the world’s population came down with what was dubbed the Spanish flu. (It got its name when the king of Spain, Alfonso XIII, his prime minister and several cabinet ministers came down with the disease.)

The flu brought life to a standstill, emptying city streets, closing churches, pool halls, saloons and theaters. Coffin makers couldn’t keep up with demand, so mass graves were dug to bury the dead. People cowered behind closed doors for fear they would be struck down.

In Philadelphia, news stories described priests driving carts through the streets, encouraging people to bring out the dead so that they might be buried.

In New York there were accounts of people feeling perfectly healthy when they boarded the subway in Coney Island and being taken off dead when they reached Columbus Circle.

Entire families succumbed.

In Tyler County, West Virginia, John Linza, his wife and two of their sons died on the same day. Two other sons died just days before them. The last Linza, an infant, died the day after his parents.

In the southwestern tip of Virginia, J.W. Trent, his wife and two sons fell ill. They were preceded in death by all four of their young daughters — Hattie, Mary, Ellen and Ruby.

In 10 weeks, the flu killed 20,000 in New York City and produced 31,000 orphans.

There is debate among historians about where the flu first surfaced — did it come from China or a British encampment in northern France or rural Kansas? But it spread worldwide practically overnight.

By the end of November, 50,000 had died in South Africa, where at its peak flu killed 600 people each day. In Egypt, the death count reached 41,000 in Cairo and Alexandria by January. In Tahiti, trucks roamed the streets of Papeete to collect the dead, and great funeral pyres burned day and night to incinerate the bodies.

Normally the most vulnerable to influenza are infants, whose immune systems are not yet up to the test, and the elderly, whose ability to fight disease?diminishes with age. In 1918, more than half the people it killed were in the prime of their lives.

Many died within hours, turning blue from lack of oxygen as they coughed foamy blood up from their lungs and bled from the nose, ears and eyes.

The Spanish flu infected the upper respiratory tract and then dove deep into the lungs with viral or bacterial pneumonia. How did it kill so many young healthy adults? Their immune systems attacked the influenza invader with such force that it killed them.

One Army doctor, quoted by historian John M. Barry, author of the bestseller, “The Great Influenza,” described the scene at a base hospital in Massachusetts:

“When brought to the [hospital] they very rapidly develop the most vicious type of pneumonia that has ever been seen. Two hours after admission they have the Mahogany spots over the cheek bones, and a few hours later you can begin to see [the blueness] extending from their ears and spreading all over the face. … It is only a matter of a few hours then until death comes. … It is horrible.”

Yet President Woodrow Wilson was unwilling to take any action that would compromise the war effort.

In early October, even as the disease was sweeping through military bases, killing soldiers and sailors by the thousands, U.S. Surgeon General Rupert Blue warned against rushing to see doctors with “mild cases of influenza.”

“The present generation,” Blue said, “has been spoiled by having had expert medical and nursing care readily available.”

Cowering in their homes
Then as now, the catch phrase was “a touch of the flu.” The flu rolled in every winter, enveloping people in a fog and fever that lasted a few days and lingered for a week or two. It was something to be endured, but not many people died from it.

And so it began in 1918.

To comprehend what came next — and why it is possible that a deadly strain of influenza could rear up 100 years later to kill tens of millions — requires an understanding of the disease.

The world’s most successful vaccinations against measles, polio, tetanus and small pox generally work in the same way. They introduce a minuscule amount of the disease so that if it ever arrives in full-blown form, the body will recognize and neutralize it with an immune system counter attack.

Influenza, however, never gives the immune system a stable target. Instead, it can transform itself into something that appears innocent to the white blood cells and enzymes intended to wage war against it.

That explains why a vaccine against the flu is a hit-or-miss proposition, based on the best guess of scientists about what flu strains are most likely to emerge six months later. The CDC estimates flu vaccines will be about 30 percent effective against this year’s predominant strain, H3N2, but about 60 percent effective against the other influenza A strain, H1N1, and about 50 percent effective against influenza B viruses.

In 1918 there were no flu vaccinations, and it would not have mattered anyway. After the “touch of the flu” that proved deadly only here and there during the spring, the influenza apparently mutated into a killer.

By early autumn the public face of America and the Western world had a gauze mask on it. People wore them to church, the military marched in them, police posed for photos in them and doctors wore them to visit patients. In Seattle, anyone who tried to board street cars without a gauze mask was arrested.

The masks served little purpose. The fine spray of a sneeze creates a cloud of more than half a million virus particles, and the virus can live for hours on any hard surface where they settle.

Four women who gathered to play bridge in Albuquerque in November prudently wore six-ply cloth masks. Three of them were dead the next day.

The frightening spread of the disease led to official and self-imposed quarantines.

Schools, theaters, bars and other gathering places were ordered closed. Mothers were told their children should be confined to their own yards. In New York, officials so feared transmission on overcrowded subways that they ordered people to work staggered shifts.

People cowered from contact with anyone who might carry the disease. A doctor in Philadelphia spoke of driving from the hospital to his suburban home without seeing another person or vehicle on the streets.

Many flu victims died in their homes of starvation, and not the disease, because they were too weak to seek food and no one dared bring it to them.

We are still vulnerable
A century later, science has revolutionized the medical profession, producing miracle drugs and surgical procedures that no one could have imagined in 1918.

But when Thomas Frieden stepped down as head of the CDC last year he was asked in an interview what keeps him awake at night.

“We always worry about pandemic influenza because this has the potential to kill so many people,” he said. “We stockpile antivirals for an emergency. But much more is needed to both track influenza better around the world and develop a better flu vaccine.”

A “touch of the flu” kills up to 646,000 people worldwide each year, sometimes as many as 56,000 of them in the United States. Since 1918, there have been three flu pandemics. (An epidemic is when an infectious disease spreads rapidly to many people. A pandemic is a global disease outbreak).

“Obviously, we still have no control over the virus,” said Barry, the historian who gave the keynote speech in 2004 when the National Academies of Science gathered to discuss pandemic influenza. “In a lot of ways, we’re arguably as vulnerable, or more vulnerable, to another pandemic as we were in 1918 because there’s more economic interdependence.”

A universal vaccine — one that will protect against every possible flu strain — isn’t expected to emerge any time soon.

“One hundred years after the lethal 1918 flu we are still vulnerable,” warned Anthony S. Fauci, director of the National Institute of Allergy and Infectious Diseases (NIAID), at a Smithsonian seminar on the 1918 pandemic. “Without a universal vaccine, a single virus would result in a world catastrophe.”

Could a 1918 scenario could repeat itself?

“It’s clear that we have a much greater capacity to respond, and we would expect to respond more effectively to a 1918-like virus, but we could have [a strain] more transmissible and more severe,” Daniel Sosin, the CDC’s deputy director for preparedness said at a recent Council on Foreign Relations forum.

One of the scant protections against another pandemic is the global reporting system that tracks emerging strains. If a 1918-like flu were to present itself, the system would, at least, alert the rest of the world to its deadly potential.

Jeffery K. Taubenberger and Ann Reid were the first researchers to sequence the genome of the influenza virus that caused the 1918 pandemic.

“The most important thing to do is not just to understand 1918 as a historical phenomenon,” said Taubenberger, an NIAID virologist, “but as an example of what could happen in the future.”

The Washington Post



Rain Further Batters Storm-Hit Portugal, Thousands Evacuated

 A flooded area in Ceira, Coimbra, Portugal, February 11, 2026. (Reuters)
A flooded area in Ceira, Coimbra, Portugal, February 11, 2026. (Reuters)
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Rain Further Batters Storm-Hit Portugal, Thousands Evacuated

 A flooded area in Ceira, Coimbra, Portugal, February 11, 2026. (Reuters)
A flooded area in Ceira, Coimbra, Portugal, February 11, 2026. (Reuters)

More ‌heavy rain flooded several rural areas in the north of storm-battered Portugal on Wednesday, leaving levees at risk of bursting around the medieval city of Coimbra and forcing authorities to evacuate about 3,000 residents as a precaution.

A succession of deadly storms has hammered mostly central and southern parts of the country since late January, blowing roofs off houses, flooding several towns and leaving hundreds of thousands without electricity for days. At least 15 people have died as a consequence of the storms, including indirect ‌victims.

As the ‌storms let up this week, a weather ‌phenomenon ⁠known as an "atmospheric river" - ⁠a wide corridor of concentrated water vapor carrying massive amounts of moisture from the tropics - brought new downpours, affecting the north to a greater extent.

RISK OF DAM OVERFLOWING

Municipal authorities in Coimbra ordered the precautionary evacuation late on Tuesday of around 3,000 people most at risk from the River Mondego bursting its banks, ⁠and the operation was still under way on ‌Wednesday, with police making door-to-door checks ‌and bussing residents to shelters.

Regional Civil Protection official Carlos Tavares ‌said on Wednesday the situation could worsen between late Wednesday ‌and midday Thursday, as the rain could cause the Aguieira dam, 35 km northeast of Coimbra, "to overflow, sweep away levees and trigger further flooding".

Part of Coimbra's ancient city wall, on a hillside in one ‌of Europe's oldest university towns and a UNESCO World Heritage site, collapsed, shutting the road below ⁠and forcing ⁠the closure of the municipal market, the city hall said.

Prime Minister Luis Montenegro was due in Coimbra to oversee the emergency response after Interior Minister Maria Lucia Amaral resigned following criticism from opposition parties and local communities over what they described as the authorities' slow and failed response to devastating Storm Kristin two weeks ago.

In central Portugal, just across the River Tagus from Lisbon, authorities evacuated the village of Porto Brandao due to the risk of landslides, and around 30 people were removed from their homes after a landslide in the neighboring beachside area of Caparica.


Record Heat and Raging Fires Ring in 2026 Across the Southern Hemisphere 

A helicopter battles a forest fire in the Biobio region, where multiple wildfires have prompted emergency evacuations, in Florida, Chile, January 21, 2026. (Reuters)
A helicopter battles a forest fire in the Biobio region, where multiple wildfires have prompted emergency evacuations, in Florida, Chile, January 21, 2026. (Reuters)
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Record Heat and Raging Fires Ring in 2026 Across the Southern Hemisphere 

A helicopter battles a forest fire in the Biobio region, where multiple wildfires have prompted emergency evacuations, in Florida, Chile, January 21, 2026. (Reuters)
A helicopter battles a forest fire in the Biobio region, where multiple wildfires have prompted emergency evacuations, in Florida, Chile, January 21, 2026. (Reuters)

From Argentina to Australia to South Africa, record heat and raging wildfires are rampaging through the Southern Hemisphere at the start of 2026, with scientists predicting that even more extreme temperatures could lie ahead - and possibly another global annual high - after three of the hottest years on record.

In January, a record-setting heat dome enveloped Australia, sending temperatures near 50 degrees C (122 degrees F) while heat and catastrophic wildfires gripped parts of South America, setting remote parts of Argentina's Patagonia ablaze and killing 21 people in coastal towns in Chile. In addition, South Africa has been experiencing its worst wildfires in years.

The extremes are occurring even as the world remains under the cooling influence of a weak La Nina, a climate cycle marked by cooler waters in the central and eastern Pacific that began in December 2024. Despite this moderating factor, temperatures are reaching record highs in various locales.

"This means the effect of human-caused climate change is overwhelming natural variability," said climate scientist Theodore Keeping of Imperial College London and the international research collaboration World Weather Attribution, who specializes in research on wildfires and extreme heat.

"As we transition into a neutral or even El Nino phase, we'll expect the incidence of extreme heat events around the world to be further amplified," Keeping added.

El Nino typically has the opposite effect of La Nina, warming the central and eastern Pacific and boosting global temperatures.

This year is forecast to be about 1.46 degrees C (2.6 degrees F) above pre-industrial levels, which would make it the fourth consecutive year to be higher than 1.4 degrees C (2.5 degrees F) above pre-industrial levels, according to Adam Scaife, head of the long-range prediction at the United Kingdom's national weather ‌and climate service.

The 2015 ‌international climate treaty, known as the Paris Agreement, aimed to keep warming below 1.5 degrees C (2.7 degrees F) above pre-industrial levels.

"If a big ‌El Nino ⁠were to develop ⁠quickly in 2026 then it's still possible 2026 could be a record," Scaife said. The World Meteorological Organization said last month that the past three years were the warmest on record.

FIRE RAGES FROM WOODS TO WATER

While most wildfires are caused by human activity, they are also a natural part of many ecosystems. Persistent heat, drought and extreme temperatures, however, are turning once-manageable fires into increasingly uncontrollable and destructive events.

Many ecosystems are not adapted to such hot, dry conditions, allowing fires to grow larger and more intense, often causing permanent damage, Keeping said.

The fires that burned through Argentina's Los Alerces National Park illustrate the shift, according to meteorologist Carolina Vera of the Center for Ocean and Atmospheric Research at the University of Buenos Aires.

The park, a UNESCO World Heritage site, is home to trees that have lived more than 3,000 years.

Local officials determined that a lightning strike caused the fire. The blaze initially was under control. But Vera said a heat wave and strong winds caused it to spread about 20 km (12 miles) in a single day, making it the worst wildfire there ⁠in two decades.

The region has been drought-stricken since 2008. Temperatures during the first two weeks of January were about 6 degrees C (11 degrees F) above ‌normal.

"These fires used to burn themselves out and form part of the forest's natural dynamics," Vera said.

"This is an example of ‌how climate change can alter a natural fire, because it appeared to be caused by lightning," Vera said.

There are no towns in that remote area.

Fires erupted in the southern part of neighboring Chile later in January and ‌crossed into the greater Concepcion area, the country's third-largest metropolitan region, destroying hundreds of homes and killing 21 people in coastal communities.

Keeping said the blazes mirrored recent disasters in places such as ‌Los Angeles, Athens and the Hawaiian island of Maui.

"Where there's been the greatest loss of life, it almost always comes down to evacuation being difficult or impossible," Keeping said. "That's particularly true in regions affected by strong downslope winds toward the coast."

WHIRLWINDS OF FIRE

About 80% of Punta de Parra, a small coastal town in southern Chile surrounded by hills and forests, was destroyed.

Punta de Parra residents said they had little time to evacuate. Doralisa Silva, 34, said she heard about a fire in a nearby community the night the blaze reached the town.

"Out of nowhere, the forest started burning and all the houses caught fire," Silva said. "The fire was on us in the blink ‌of an eye. There was nothing we could do."

Silva said her family was among the last to try to flee because they had no vehicle. Silva said flames blocked their exit as embers rained down as she and her partner Hermes Barrientos fled with their ⁠2-year-old daughter.

Barrientos said winds of nearly 70 km ⁠per hour (43.5 mph) whipped through the area, creating whirlwinds of fire that spread to the beach and trapped residents. The family and others eventually found refuge in a large dirt field at the center of town, and spent the night watching their community burn.

A FUTURE FILLED WITH FIRES

Record-breaking heat in southeastern Australia has also fueled the country's worst fires since the deadly 2019-2020 season, when 33 people were killed.

In addition, the 2025-2026 fire season has been the most severe in South Africa in a decade, according to officials, killing wildlife and hitting tourist destinations such as Mossel Bay and Franschhoek.

"The hot, dry and windy conditions that drive the most extreme wildfires are becoming more intense and more likely," Keeping said. "And it's happening all around the world."

The Southern Hemisphere has warmed by about 0.15 to 0.17 degrees C (0.27 to 0.30 degrees F) per decade since the 1970s, compared to 0.25 to 0.30 degrees C (0.45 to 0.54 degrees F) in the Northern Hemisphere - largely because its vast oceans absorb heat more slowly and because of Antarctic meltwater.

Still, southern land masses are now warming at similar rates to northern land masses, and contrasts between warming land and cold meltwater can intensify weather patterns, leading to prolonged heat waves, droughts or flooding.

Keeping said adaptation is critical, including authorities managing vegetation near cities and developing effective evacuation plans, and builders using fire-resistant materials. Wildfires are inflicting mounting economic damage. A 2026 report by insurance broker Aon estimated global insured wildfire losses at $42 billion in 2025, up from an average of $4 billion annually between 2000 and 2024. The Los Angeles fires last year were the costliest on record.

Swiss Re, the world's second-largest reinsurer, found that wildfires accounted for about 1% of global insured losses from natural disasters before 2015, but now represent 7%, with economic losses linked to fires rising by about $170 million a year since 1970.

"You actually cannot stop a lot of these really large intense wildfires. They're simply too big," Keeping said.

The most important way forward, Keeping said, is to "have a serious conversation about limiting future climate change to prevent this issue from worsening."


Study: Noisy Humans Harm Birds and Affect Breeding Success

FILE - Birdhouses line a path outside a resident's room at the Ida Culver House Ravenna, a senior independent and assisted living home in Seattle, on May 21, 2020. (AP Photo/Elaine Thompson, File)
FILE - Birdhouses line a path outside a resident's room at the Ida Culver House Ravenna, a senior independent and assisted living home in Seattle, on May 21, 2020. (AP Photo/Elaine Thompson, File)
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Study: Noisy Humans Harm Birds and Affect Breeding Success

FILE - Birdhouses line a path outside a resident's room at the Ida Culver House Ravenna, a senior independent and assisted living home in Seattle, on May 21, 2020. (AP Photo/Elaine Thompson, File)
FILE - Birdhouses line a path outside a resident's room at the Ida Culver House Ravenna, a senior independent and assisted living home in Seattle, on May 21, 2020. (AP Photo/Elaine Thompson, File)

Noise pollution is affecting bird behavior across the globe, disrupting everything from courtship songs to the ability to find food and avoid predators, a large-scale new analysis showed on Wednesday.

Researchers reviewed nearly four decades of scientific work and found that noises made by humans were interfering with the lives of birds on six continents and having "strong negative effects" on reproduction success.

Previous research on individual species has shown that single sources of anthropogenic noise -- such as planes, traffic and construction -- can affect birds as it does other wildlife.

But for this study, the team performed a wider analysis by pooling data published since 1990 across 160 bird species to see if any broader trends could be established.

The study, published in the journal Proceedings of the Royal Society B, found clear evidence of a "pervasive" impact of noise pollution on birds worldwide.

"We found that noise significantly impacts communication risk behaviors, foraging, aggression and physiology and had a strong effect on habitat use and a negative impact on reproduction," AFP quoted it as saying.

This is because birds rely on acoustic information to survive, making them particularly vulnerable to the modern din produced by cars, machinery and urban life.

"They use song to find mates, calls to warn of predators, and chicks make begging calls to let their parents know they're hungry," Natalie Madden, who led the research while at the University of Michigan, said in a statement.

"So if there's loud noise in the environment, can they still hear signals from their own species?"

In some cases, noise pollution interrupted mating displays, caused males to change their courtship songs, or masked messages between chicks and parents.

The study included many common species such as European robins and starlings, house sparrows, and great tits.

The response varied between species, with birds that nest close to the ground suffering greater reproductive harm, while those using open nests experienced stronger effects on growth.

Birds living in urban areas, meanwhile, tended to have higher levels of stress hormones than those outside of cities.

Some 61 percent of the world's bird species have declining populations, mostly due to habitat loss driven by expanding agriculture and logging, the International Union for Conservation of Nature said in October.

The study authors said that noise pollution was an "underappreciated consequence" of humanity's impact on nature, especially compared to biodiversity loss and climate change.

But some relatively simple fixes could make a big difference for birds, they said.

Madden told AFP that shifting from noisier cars and landscaping tools such as mowers and leaf blowers to electric-powered alternatives was one idea.

Another could be "running machinery outside peak breeding seasons, avoiding activity when birds are migrating through an area, or shifting construction away from habitats that support vulnerable species", she added.

Buildings could also be adapted to muffle sound in the same way they are constructed to improve visibility and minimize bird collisions, said the study's senior author Neil Carter, from the University of Michigan.

"So many of the things we're facing with biodiversity loss just feel inexorable and massive in scale, but we know how to use different materials and how to put things up in different ways to block sound," he said.