And I can cultivate that intuition in you by just asking you

And the focus when I'm talking about the diarrheal organisms, as well as the focus when I'm talking about any organisms that cause acute infectious disease, is to think about the problem from a germ's point of view, germ's eye view.

This, uh,

If you look at the y axis of this graph, you'll see that, in the mechanically ventilated air, you have a higher probability of encountering a potential pathogen, or germ, than if you're outdoors.

And you can test these ideas.

Dean, how bad is it?

It's highly contagious. So it's said. Tularemic meningitis.

We dispose of our waste properly, we follow safety procedures, we don't work with pathogens.

They attack like white blood cells fighting an infection.

It's covered in germs from someone else's mouth.

fungal.

This is another case where a theoretical paradigm in biology really worked was the germ theory of disease.

What I'm seeing here is a deep impact wound with several virals and secondary bacterials, and that, by the accumulation of denuded tissue around the incision marks, indicates that you've had this bite for over 14 days.

Bugs.

He used a remote village, released some kind of pathogen.

Pathogenic microorganisms with pathogenic microorganisms.

I've not time to go into more of it.

We're really concerned with kids naught to five.

So astronauts find that these bacteria that have been in orbit and came back to earth were somehow more sick making, what scientists call more virulent than they had been before they left.

(Applause)

And the lymphatic system is the stuff in your blood that fights diseases.

There is a company called Sharklet Technologies that's now putting this on the surfaces in hospitals to keep bacteria from landing, which is better than dousing it with anti bacterials or harsh cleansers that many, many organisms are now becoming drug resistant.

Germs can cause sickness.

I think we've all heard of the word, bacteria.

Եվ պրոկարիոտի օրինակներն են, երկու մեծ խմբի են բաժանվում

And yes they die, drowning in their own fluids, of pneumonia.

We think bacteria made the rules for how multicellular organization works.

They're a tiny fraction of an inch long, and they can carry on their little legs some of the cholera bacteria that then leads to human disease.

living in one of the most closed off, anti septic environments imaginable.

But when they grew to a certain cell number all the bacteria turned on light simultaneously.

And that brings me to the title of the talk,

So, all of the talk today is going to deal with two general questions.

And I'm going to be talking, to begin with, as I said, about diarrheal disease organisms.

This strain of syphilis raises the body temperature well above normal.

If instead transmission to another host requires host mobility, then we expect that the winners of the competition will be the milder organisms.

That little issue took the team two years to solve.

You've got a lot of pressure favoring antibiotic resistance, so you get increased virulence leading to the evolution of increased antibiotic resistance.

Recovering from the surgery in the hospital, I get bedsores.

What about the bioweapons?

Say a new super bug has emerged.

Number three isn't this stuff cool? (Laughter)

A new global epidemic.

That's because if there are any harmful bacteria on the outside,

These examples are just the first glimpse of our ignorance of life on this planet.

This particular strain of syphilis is extinct.