And we're alive. How are you, sir? How are you, good to see you again? I'm thrilled to be here. Thanks for doing this man. Thanks for having. I

know I should tell people before we get started I did not know when I asked you to come back on that you were heavily

involved in this whole vaccine debate.

What I wanted to have you on to talk about is tropical diseases

because I remember when we did that sci-fi show,

you explained to me that some ungodly percentage of people that live in tropical climates

are infected by parasites.

That's right.

Well my day job is developing vaccines for tropical diseases.

We develop the vaccines no one else will make because of the world's poorest people.

So we call them tropical diseases, but there really are diseases of poverty.

The vaccine issue, the advocacy issue around vaccines and autism is kind of a new thing that I got

drawn into just because I'm a parent of an adult daughter with autism and I make

vaccines so it was a natural that I'd get drawn into it.

Yeah so when I said that you were going to come on then I got inundated by people that

are you know the vaccine thing is such a polarizing issue yeah it's awful and so many

people seem to think they absolutely know what causes what especially when it comes to something like autism, which is a huge issue in this

country, it's a huge issue around the world, and it didn't use to seem to be.

The question is, was that because it was

undiagnosed? Was that because it just, it's more prevalent today? What do you

think? What is your take on this? Well, I don't think we really know.

One of things for sure, we're diagnosing people with autism who we diagnose as something else in the past,

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