Superbugs' Natural Predator (Rebroadcast)

desperate effort to combat superbugs, thanks and enjoy. As infections become harder to treat because of antibiotic resistance, scientists are enlisting help from bacteria's oldest enemy, viruses, so called bacteria phases literally bacteria eaters are viruses that target bacteria. While researchers have known about them for a century and even use them to treat people, these biological agents have been largely ignored in most of the world since penicillin became

available until recently. That is Welcome to Prognosis, a podcast about health and science, medical technology, and the changes that are underway across the world. I'm your host, Michelle fay Cortes. For our third season, we're delving deeply into the human cost of bacterial infections that can't be stopped by even our most potent antibiotics. The loss of these miracle cures has been described as one of the biggest threats to

global public health. It spurred a search for alternatives to antibiotics. In this episode, Bloomberg's Jason Gale explores how that effort is leading scientists back to a Soviet era inspired treatment known as phage therapy, that saving the lives of patients who couldn't be cured with antibiotics alone. He also examines the discoveries being made in some of England's smelliest soils that promised to protect us against two made your sources

of deadly disease. Here's Jason. This is Joe Grimwood. He's a retired chiropractor who lives at the end of a debt road in the hills outside of Reno, Nevada, with Jasmine, his fifty pound bulldog pit bull Terry Across and more recently an orange second hand tractor. And it's got a loader bucket on the front and a scraper on the back. It's what they call a midside so it's thirty five horsepower, three cylinder diesel. It's four wheel drive. It can lift

about eighteen hundred pounds. Joel has big plans for it. What I want to do is put a garden in over here, and it's you know, at least a core or acre. Joel is sixty six. He wasn't always this active. In fact, a year and a half ago he was gravely ill. I practice chiropractic for over twenty years on the north Shore like Tahoe. In two thousand and seven, I had a cardiac arrest and that ended that. Joel had a diseased heart muscle that put him in cardiac failure.

Five years ago, he became so ill that he needed a heart transplant to buy him some time. While he waited for a donut organ, his doctors implanted a mechanical pump known as a left ventricular assist device, which is a pump that takes over for your left ventricle and pumps blood from your left ventricle to your order. The device fitted in Joel's chest was powered by an electrical cord that exited his abdomen, and this cord it was a direct connection between the inside of his heart and

the outside world. Despite his best efforts to keep it clean, bacteria started growing inside the pump. Within a year, Joel was battling a potentially deadly infection was in all the hospital for three years. I was on ivy antibiotics most of that time, and they just never could quite knock it out. Surgeons would scrape away dead tissue, vacuum up bacteria laid in material, and sterilize and dress an open wound that gradually grew to the size of a key line.

In Joel's case, antibiotics were subduing the gems in his bloodstream, but we're powerless against their mushrooming source, the slime forming bacteria growing on his implant. Scientists called the slime bio film. As a survival strategy, bacteria builds structured communities on surfaces, including on artificial hips and knees, pacemakers, and catheters, even on airways of cystic fibrosis patients. This gunk is a fortress light barrier that protects bacteria from antibiotics and the

immune system. The propensity for bacteria to develop bio films and prosthetic implants is a major threat to modern medicine. For instance, more than a million knee and hip replacement operations performed annually in the United States alone, and the joint infections that result cost more than one billion dollars in hospital bills. You know, I was in trouble and I was going to die. I was getting that feeling, but I never lost the whope, the faith of belief

that I had survived this. I don't think there was much point in thinking any other way. I had to stay positive. Joel sent me pictures of what his chest looked like without the dressings. His gaping chest wound is about six inches long and the color of uncooked steak. I'm not especially squeamish, but being able to see directly into his body and identify the mushroom shaped base of the pump, well, it made me feel nauseous. Joel desperately needed a new heart, but the bacterial slide growing on

his heart pump made a transplant too dangerous. Four hospitals refused to put him on the waitlist because of the infection risk. Removing the device would dislodge a lethal maelstrom of staff Loococcus aureus bacteria. If Joel was going to survive, he needed to get rid of the bacteria, and that was impossible with antibiotics alone. And the last I'd say six months or so, I really got a sense of

urgency because it just wasn't going away. Hope was dwindling, that is until the fifth hospital offered John something Else, a type of experimental treatment that had been courageously attempted there a couple of years earlier. It was subsequently tried with overall positive results in half a dozen patients in much of two thousand and six, California academic Tom Patterson became the hospital's first recipient. He got severely ill with

an incurable bacterial infection. He was close to dying in the hospital attached to the University of California, San Diego when his wife came up with one last option, an approach that flourished in the former Soviet Union under stalinism but hadn't been used in the US for generations, and that speech therapy. This is Stephanie Strafty, an infectious disease epidemiologist and the Associate Dean of Global Health Sciences at UC San Diego, where I also co direct a new

feage therapy center called iPath. The treatment involves using specially selected and prepared viruses to attack disease causing bacteria. Professor Stratti took that unconventional approach to save her husband Tom and its success led to Joe Grimwood and other patients getting it. In Tom Patterson's case, it was a last ditch attempt to keep him alive. He had already had in seven cases of septic shark and so it was either watch him die or do something drastic on my own,

and I decided to try to save his life. Professor Strafti didn't send out to become an expert in phage therapy. In fact, she devoted decades focusing on the HIV epidemic that got derailed somewhat. In two thousand and sixteen, my husband and I were on vacation in Egypt and he acquired what looked like to be a stomach bug, but

he got violently ill. He was eventually met a back to Germany and then back home to u C. San Diego, where our doctor friends were caring for him, and it turned out that he had a gallstone that caused a giant absence in his abdomen, and inside that abscess lurked a superbug. The infection was caused by a bacterium called a senator. Back to beaumani I, it possessed so many

drug resistance genes that it was untreatable. Professor Strati says she stopped counting the number of antibodics husband was given. His infection was resistant to fifteen antibiotics right off the bat, and it was only partially sensitive to three, and in the few weeks that it took to um get him back home to San Diego, it acquired resistance to those last three antibiotics, including calliston and mirror pennum, and those

are considered last resort antibiotics. The bacterium is nicknamed Roqua BacT because of the veterans you have returned from the Middle East with the infection. This is an organism. I used to play it on my petri dishes back in the nineteen eighties at the University of Toronto, and it was considered a pretty wimpy organism back then. But it's acquired superpowers at the bacterial level because it's almost like

a kleptomaniac. It steals antibiotic resistance genes from other bacteria, and when we're throwing antibiotics at an infection, this one is resistant and it's just rubbing its hands together saying, okay, you got rid of my competition. Now I can move in for the kill and a head Professor Strattis husband Tom firmal in its clutches. He was possibly hours away from death. His doctors had given us the talk. They said, basically, there's nothing else that we can do. This organism is

resistant to all antibiotics. Desperate, Professors Strafe clung to something she recalled from her undergrad days back in Canada. Well, I have a very old degree in microbiology from the nineteen eighties, and I had learned in my classes that pages are viruses that have naturally evolved to attack bacteria, and you can see how they work in a petri dish, even though you can't visualize them with your naked eye

or even with a light microscope. But what I didn't know is that pages had been used over a hundred years ago to treat people with bacterial infections quite successfully. For a time, Professor Strafti worked with scientists in Texas and the US military to acquire cocktails of pages that matched the bacteria poisoning her husband. Meantime, she aked with his doctors and the Food and Drug Administration to gain

approval to use them on compassionate grounds. The first batch arrived from Texas, a and m University, and we inserted those into the tubes or catheters in his abdomen because that was closest to his infection, and we just hoped that nothing would happen, because you know, we were worried that he could die of septic shock because essentially we were injecting a billion viruses into his body, and he

remained stable. So two days later we had phages arrived from the Navy, and those pages were considered to be more virulent. We injected those pages into his body, a billion pages per dose, and that was when he really started turning around. While it's impossible to prove that it was phage therapy that saved Tom's life, what happened next

was dramatic. A couple of days after we began intervene his phage therapy, he lifted his head off the pillow and kissed his daughter's hand, and everybody in the icy freaked out, including myself. Doctors observed something very cool in Tom's case. The bacteria had to make a genetic decision. It could either face the phage or it could face the antibiotic, and it decided to face the antibiotics, so it actually modified itself to become susceptible to antibiotics again.

This synergy between phages and antibiotics has occurred in other patients. After phage therapy, their superbug was no longer immune to antibiotics, and it's opened up a way of resurrecting failing antibiotic regimens. If we can take advantage of the fact that pages can put selective pressure on bacteria to make them susceptible to some antibiotics again, then that would be a really important advance. Even if it saves just a couple, that could be a very important turning point in this whole

global crisis that we're facing. In the case of Joel Grimwood, whose chest was being slowly consumed by bacterial slime, Pages are credited with doing something else as equally cool. After a four week course of intravenous phage therapy in combination with antibiotics, swabs of his open wounds came back negative. For Staff, it was like a eight the bacteria and then when all the bacteria was gone, it just went away.

It just died. But once I started taking the phage, there was a marked improvement in my energy level and how I felt. I'd say within a week I started to notice differences. Importantly, after four years, some forty surgeries and a multitude of medical treatments, he was finally eligible for heart transplant surgery. Doctors chalked up his surprising turnaround to phage therapy. They qualified me for the transplant, and

in two weeks I got a heart. Joel Grimwood and Tom Patterson epitomized the dramatic results that have revived interest in phage therapy. It's a counter untreatable infections, but the basic research required to find and developed phage based products that's often frustrating and well sometimes downright gross work. It involves getting up close and personal with some large sources of bacteria. What we can see here are some really healthy, lovely picks. I think there. I think they've lost our

old spots. This one's on there with the spots pot. That's Martha Clerky. She's a micro biologist who runs a research lab and teaches at the University of Leicester, roughly a hundred miles north of London. She's responsible for some key phage findings that promised to not only improve food safe but arrest a major killer of hospital patients. On an overcast summer's day, Professor Cloakey is at a farm in East Lake, wearing a dark blue cotton dress and looking at a pig pen with about a half a

dozen animals in it. The swine are huge. One bore probably weighs close to five hundred pounds. But Professor Cloakey isn't here to just visit a farm. She's hunting pages. It's not what's in the pigs that interests her, it's what's beneath them. It's a microbial treasure trove comprising soil and pig excrement. We get virus like fluo eight bacteria

of their own viruses known as pages. So that's what all our works about, is trying to find these very specific bacterial viruses that we can then used to treat

diseases and animals and humans. A quarter of a teaspoon of this smelly stuff will harbor tens of billions of bacteria and hundreds of billions of pages, which is why farm soils are fertile ground for Professor cloak So it's a wonderful, natural, lovely microbial soup, all bacteria feeding on the on the soil, playing all different roles, living off the nutrients, some of which are provided by the animals, which is why we often find viruses at target different

bacteria the animals curry. So in order to find good pages, we start off with a source of healthy animals and we search through the soils and feces associated with them, such as this sample here. It's immaterial like this that Professor Cloak and colleagues made an important discovery back in the lab, a jumbo phage that can be added to pig feed to selectively weed out salmonilla from animals digestive tracks.

The hope is that removing salmonella from its source in animals will safeguard food, and doing so will avoid the huge waste associated with dumping food in response to contamination and product recalls, and all of that will reduce the use of antibiotics, both in animals and people, which fosters Drug resistance features are an obvious thing where that you could potentially use to manipulate the microbiome of an animal to remove pathogens or to promote a more healthy gut microbiome.

In a similar way, Professor Clokey is hoping to read hospital patients of a major bacterial killer Clostridioides difficil, or seed IF, causes almost half a million diarrheal illnesses and about fifteen thousand deaths annually in the United States alone. Older hospital patients are its prime victims. The miserable life derailing diarrheal disease that seed IF causes usually comes on after a friendly intestinal bacteria have been annihilated by a

course of antibiotics. Among people over sixty five diagnosed with a healthcare associated see differ infection, one in eleven is dead within a month. The germ is also really hard to eliminate. Once you've had it, there's a one in five chance of it coming back. It took Professor Cloaky in her team three years, tests on hundreds of stool specimens and countless hours of digging up smelly black esterone

soils to finally find one. It was a major breakthrough to discover what appear under an electron microscope a little bit like alien creatures. They look a little bit like um somehow, like they come from another world. They have these elegant snurgrical heads and them long sort of flowing tail fibers. They're just they look a little bit like a a sort of rather unusual insect, but with killer instincts. Those long tail fibers will help the phage find and

snare its prey. Once the bacteria is in its grips, the page will inject it's DNA into the cell, and at that point the bacteria is no longer bacteria anymore. It's just a we call a viral factory. It's just making viral particles. After about half an hour will be about maybe fifty full fully formed viral particles in that cell. They then release different enzymes which then break down that cell in the cell, or which bust open, and the

phages will be released. Those new pages will find new cells on the whole process will repeat itself over again. It's like a biodegradable smart bomb, capable of eliminating a single bacterial target without affecting other beneficial bacteria. So, at least in theory, if you can get a few pages to the site of infection, you then have an institution replication of that medicine to be able to wipe out

the infection where it's needed. You can see it's very different to your sort of standard one compound antibiotic lab experiments with animals that mimic the disease, indicate the Professor cloaks, phages are adept at killing the mains rains of seed if the patients typically contract. They can also inhibit the bacteria when pages are administered days before animals are exposed to see diff which suggests they could potentially be given

to vulnerable patients to prevent the disease. Professor Clerk is gathering the basic data needed to demonstrate the safety and efficacy of her pages. She says a prototype product could be ready in about five years. Meantime, researchers in other countries are forging ahead with patient studies aimed at identifying if and how phages could become part of routine medical care. Ironically, in some countries they established that niche early last century

of us is did look up. One of the earliest phage therapy centers is Intability and the former Soviet Republic of Georgia, known as the Eliava Institute. It was the hub for Soviet phage therapy research and production and accumulate did the world's largest phage library. It's supplied the Red Army with thousands of treatments to prevent and treat dysentery and wound infections during World War Two, though its products weren't subjected to the klins of randomized controlled trials usually

needed for regulatory approval. He's definitely stratti Again. They were taken up very vigorously in the former Soviet Union and in parts of Eastern Europe, where they are used to this day over the counter. Even penicillin wasn't so readily available there compared within the West, where antibiotics were considered easier to administer and store. There was also the association with communism during the Cold War that deterred phage research. If you were into pege therapy, were lable to pink

o kami. So this geopolitical bias was a major factor that really delayed the advances in pege therapy that we're starting to recoup now. I was surprised to find out that the US military was working on fair age, but it turns out that many different militaries, including the Belgian military, have been working on phage for quite some time. Professor straphanis efforts to save a husband have already drawn attention to a largely neglected and somewhat mistrusted approach to treating infections.

In February of two thousand and nineteen, the couple released a book about their ordeal. It's called The Perfect Predator, A scientist race to save a husband from a deadly superbug. They recently sold the movie rights to a big Hollywood name. My husband's case was kind of considered to be a

watershed moment in the strange history of phage therapy. He certainly wasn't the first person to be treated with phage therapy, but in the United States, he was the first person to receive intravenous phage therapy to treat a systemic superbug infection that was essentially pan resistant. And that knowledge that intravenous phage therapy is safe and those phages, even though we don't really know how they get where they need to go, they know, and so um, it's allowing many

other cases to be treated. In fact, we estimate for fifty people have been treated since Tom's case. For Joel Grimwood, Pages arrived just in the nick of time, a year and a half after his Page treatment that preceded his heart transplant. He says he feels like a different man. He has plans now for things he wouldn't have been able to do two years ago, while fighting off infections and waiting for a surgery that never seemed was coming. I'm becoming more active. They told me I can go

swimming now, so that'll be fun. I'm not going to be uh going bar chested on the beach. I'll tell you that. How gonna have to have so a T shirt art or something. It's it looks like I got blown up. Ironically, he's probably alive today because of explosions, the microscopic one's going on inside his body thanks to fage therapy. You know, I'd saved my life. I guess it is a miracle. You away, and I feel that way. I tell my friends all the time. You know, I'm

just watching the miracle unfold. All the cases of Joel Grimwood and Tom Patterson point to the promise of page therapy to find untreatable infections. They don't constitute scientific evidence that they work. The challenges to apply all the acquired knowledge gathered over the past century to run coordinated, rigorous trials to prove what, if any role phages can play in mitigating the anti microbial resistance crisis. The clock is ticking.

It's predicted that unless something drastic happens, one person will die every three seconds from a superbug infection. By the world can't afford to wait more years to find out where the phages can help. And that's it for this week's prognosis. Thanks for listening. Do you have a story about healthcare in the US or around the world we want to hear from you. Find me on Twitter at the Cortes or send me an email m Cortes at Bloomberg dot net. If you were a fan of this episode,

please take a moment to rate and review us. It really helps new listeners find the show, and don't forget to subscribe. This episode was produced by Ethan Brooks. Our story editor was Rick Shine. Special thanks to John Lawerman, who helped with the reporting, and Drew Armstrong, our healthcare team leader. Francesco Leavia's head of Bloomberg Podcasts. We'll be back next week with the new episode. See you then,