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Work and play: Disease spread, social behaviour
and data collection in schools
Dr Jenny Gage, Dr Andrew Conlan, Dr Ken Eames
Metapopulation models• Complicated word for something familiar.• Population patches: lots of infection within a patch, less transmission between patches.
Even within a small school, there’s a lot of spatial structure…
Class
Class
Class
ClassClass
Class
Playground Dining hallTravel
… but how do different parts interact?
Drawing contact networksAt our last research group meeting, we asked everyone to
choose any two people in the room.
Person Contact 1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
We’ll now plot this table as a contact network.
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Who is named most
frequently?
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
It helps to put people with a lot of links in the centre.
It’s also a good idea to work systematically.
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Who is named second most
frequently?
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Drawing contact networks
Julia
Who is named
third most frequently?Person Contact1 Contact 2
Alicia Julia KenAndrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Drawing contact networks
Julia
Who is named
fourth most frequently?Person Contact1 Contact 2
Alicia Julia KenAndrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Drawing contact networks
Julia
We’ve got all the
contacts now - is anyone
missing?Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Roberto
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Roberto
Now we add the links for
each person.
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Roberto
Now we add the links for
each person.
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Roberto
Now we add the links for
each person.
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Roberto
Now we add the links for
each person.
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Roberto
Andrew and Josh have already
named Julia, so these become
MUTUAL LINKS.
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Roberto
Andrew and Alicia have already
named Ken, so these become
MUTUAL LINKS.
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Roberto
Person Contact1 Contact 2Alicia Julia Ken
Andrew Julia KenJohann Julia Tom
Josh Julia AliciaJulia Andrew JoshKen Andrew Alicia
Roberto Julia KenTom Johann Josh
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Roberto
Johann has already named
Tom, so this becomes a
MUTUAL LINK.
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom Johann
RobertoThe network is now
complete, but moving Tom will
make it easier to see what’s going on.
Drawing contact networks
Julia
Ken
Andrew
AliciaJosh
Tom
Johann
Roberto
We could usefully move Roberto
also.