Woman deliberately inhales virus culled from sewage to attack superbug
Originally published on 9 News
Bacteria lodged deep in Ella Balasa’s lungs were impervious to most antibiotics. At 26, gasping for breath, she sought out a dramatic experiment — deliberately inhaling a virus culled from sewage to attack her superbug.
“I’m really running out of options,” said Balasa, who traveled from her Richmond, Virginia, home to Yale University for the last-resort treatment. “I know it might not have an effect. But I am very hopeful.”
Pitting one germ against another may sound radical, but it’s a sign of a growing global crisis. Increasingly people are dying of infections that once were easy to treat because many common bugs have evolved to withstand multiple antibiotics.
Some, dubbed “nightmare bacteria,” are untreatable. Now scientists are racing to find novel alternatives to traditional antibiotics, a hunt that is uncovering unusual ways to counter infection, in unusual places.
One possible treatment tricks bacteria out of a nutrient they need to survive. Others rev up the immune system to better fend off germs.
And viruses called bacteriophages — discovered a century ago but largely shelved in the West when easier-to-use antibiotics came along — are being tried in a handful of emergency cases.
“People’s frustration with antibiotic resistance boiled over,” said Yale biologist Benjamin Chan, who travels the world collecting phages and receives calls from desperate patients asking to try them. “We’re more appreciative of the fact that we need alternatives.”
Nature’s bacterial predator, each phage variety targets a different bacterial strain. Originally used to treat dysentery in the early 20th century, today Chan looks in places like ditches, ponds and, yes, sewage treatment plants for types that attack a variety of human infections.
“The best places are often really dirty places because we’re dirty animals,” he said.
Chan saw hope for Balasa in a lab dish covered in brownish bacterial goo.
Balasa has a genetic disease called cystic fibrosis that scars her lungs and traps bacteria inside, including a superbug named Pseudomonas aeruginosa. A daily dose of inhaled antibiotics kept the infection in check until last fall, when the drugs quit working. A last-ditch IV antibiotic wasn’t helping much either.
Chan grew a sample of Balasa’s bacteria from her phlegm. Then came the key test: He dripped several pseudomonas-targeting phages into the grimy dish — and clear circles began appearing as the viruses consumed the bugs around them.
But would what worked in the lab really help Balasa’s lungs?
At least 23,000 Americans die every year as a direct result of an antibiotic-resistant infection and many more die from related complications, according to a 2013 report from the Centers for Disease Control and Prevention. The CDC plans an updated count, but other research has estimated the toll could be seven times higher.
And while there are no good counts in much of the world, one often-cited British report said unless solutions are found, by 2050 up to 10 million people globally could be dying from drug-resistant infections, slightly more than die from cancer today.
Yet few new antibiotics make it to market and many major drug companies have ended antibiotic research, seeing little profit in medicines that germs will soon outsmart. A recent report found just 11 traditional antibiotics being studied to treat any of the World Health Organization’s list of worst bugs, with no guarantee they’ll work.
And while some people are more at risk — those getting surgery, or cancer chemotherapy, for example — “antibiotic resistance is a problem essentially for everyone,” said Dr. Anthony Fauci, infectious diseases chief at the National Institutes of Health.
“Over the next several years, all indicators seem to point to the fact that this is going to get worse and worse,” he added.
Last month, Balasa became Yale’s eighth patient, inhaling billions of phages over seven days.
Almost immediately, she was coughing up fewer bacteria. It took a few weeks for her to feel better, though and during that time she switched briefly to some antibiotics she’d previously given up.
Without a formal study it’s hard to know, but Chan’s tests suggest phages killed much of her predominant pseudomonas strain and made the survivors sensitive again to a course of those antibiotics.
Balasa called that “a very big success for me,” and was able to quit her antibiotics. She didn’t notice additional improvement after a second round of phages, aimed at different strains.
“The true test,” Balasa said, “is how long I can go without using any antibiotics again.”