The region where I've spent more time in the water than any other is the Amazon, and there's no better place to begin my investigation.

In the city of the heart of the Amazon Monex, the surrounding tropical waters are so prolific that the concentration of fish species is around 10,000 times that of the ocean.

But this region is also a mecca for a collection of deadly parasitic monsters that could have caught me ever since the beginning off human history.

Right up until the present day, human species has been drawn to the water way.

Use the river to travel on.

We also use it as a source of food.

Now parasites are drawn to us for exactly the same reasons our blood vessels take them where they want to go.

On dhe, they also give them a rich, very concentrated source of food.

I've lost track of the amount of time I've spent in the Amazon.

When I add it up is probably more than 1000 days so I need to identify what parasites could be living inside me that may have hitched a ride from here.

The first contender is a flesh eating parasite that's just raging through these parts of the Amazon.

It's a micro called Lishman.

What starts off as fairly harmless looking sores conducive Elop into horrifying, leaking wounds, which the body's defenses just calm.

Hell, people tell me there's a clinic nearby that's treating this deadly disease.

Doctors already have a long list of patients.

You Levine first thought this was just a nasty spot that wouldn't go away.

But it's what it can develop into that truly shocking.

The girls actually only been living in this region here for about a month, something like everybody else in the family, and it sounds like they've all had it.

Her source air in the early stages, and she's being treated before they grow far worse.

It seems that she's well aware of what this can develop into Lishman.

Isis is tough to treat you.

Levine will need ah highly disciplined schedule of 55 injections of chemotherapy like drugs over the next 20 days.

She hopes this will prevent her sores from turning into grotesque of debilitating wounds.

But there's no guarantee saying is it's.

It's about daily habit of going to the water tow talkto to bathe in the river basin, where the insects, because flesh eating Lishman isis is spread from person to person.

My tiny blood sucking sand flies when the parasite entered you, Levine's body, it's hijacked her immune system by attacking her body's own defense cells, then devoured them from the inside while using them to travel through her body.

Without this vital treatment, parasite can rapidly multiply, making you Levine a deadly carrier, and turning a small lesions into monstrous, leaking wounds.

If you live here, your chances off catching flesh eating Lishman Isar Well, it's almost unavoidable now.

I don't live here, but I have spent a lot of time in places like this on Dhe.

Although Leachman Isis has been in the back of my mind, I was starting to wonder if I haven't worried about it enough.

This investigative journey has hold me out of my comfort zone on, although I've spent more than 30 years getting up close and personal toe large, toothy, flesh eating predators.

What I've witnessed with these monstrous parasites is making me wonder whether my world is about to be turned inside out.

It's definitely time to go back to Liverpool.

Find out what microscopic monsters are living inside me.

I guess this is true.

You've been to so many countries.

I've got lots of results.

So I'll cut Jason.

Just go through them, really Least in Isis.

You haven't picked up malaria.

I had this a long time ago, but I recovered.

Those tests were all negative.

We looked in your urine to see if you had eggs off.

Sister smarts Is Bill Hearts here?

Something that I've definitely been exposed too, Because one of my crew members have it.

There's no blood in your urine and you'll be pleased to know no parasites in your urine either.

But I'm dreading the next one Filariasis.

This is the one that I find the most horrifying.

That was negative.

This seems almost too good to be true.

Looked at the stool samples, no features of any worms, which was one of you were worried about.

But we've seen something.

A number of Paris eyes.

We found some amoebi in the stolen.

These are things that can cause a meeting this entry a severe diarrhea.

I'm being told that in my body I have a parasitic river monster.

It has invaded my intestinal lining and could be quite the attacking my body's cells on devouring them while creating a protective sister around itself that is resistant to my body's immune system.

Something that could be a ruthless killer is living inside me.

But there are two kinds.

The lab ran an extra tests to be sure what type I have.

You've got much more common, harmless kind.

So I'm looking all right.

You're saying I'm feeling okay.

I mean, is it possible to get rid of that?

Or is that most people live with it?

But if we think it's causing a problem, it's relatively easy Street with some antibiotics on.

I would have been astonished if we didn't find this, given your travel history, a surprising nuclear bill of health.

Given the number of countries you've bean to on the amount of exposure that you've told me about those various countries, I feel like I've gotten away by the skin of my teeth from some of the world's deadliest parasites.

I have to say I am so relieved that Despite all my travels, I have remains pretty safe.

So does that mean I should quit while I'm ahead?

Well, as with all my investigations, knowledge is power.

And although this might sound strange, I actually feel better equipped now to keep safe in the future.