1. Work and play: Disease spread, social behaviour and data collection in schools Dr Jenny Gage, Dr Andrew Conlan, Dr Ken Eames

2. Metapopulation models Complicated word for something familiar. Population patches: lots of infection within a patch, less transmission between patches.

3. Lots of people close together in the same place. Many susceptibles - ideal for an epidemic.

4. Even within a small school, theres a lot of spatial structure… Class PlaygroundDining hallTravel … but how do different parts interact?

5. Structure of Contacts: Building Networks Who mixes with whom?

6. Drawing contact networks At our last research group meeting, we asked everyone to choose any two people in the room. PersonContact 1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Well now plot this table as a contact network.

7. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Who is named most frequently?

8. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia It helps to put people with a lot of links in the centre. Its also a good idea to work systematically.

9. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Who is named second most frequently?

10. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken

11. Drawing contact networks Julia Who is named third most frequently? PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh

12. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh

13. Drawing contact networks Julia Who is named fourth most frequently? PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh

14. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann

15. Drawing contact networks Julia Weve got all the contacts now - is anyone missing? PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh

16. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto

17. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto Now we add the links for each person.

18. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto Now we add the links for each person.

19. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto Now we add the links for each person.

20. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto Now we add the links for each person.

21. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto Andrew and Josh have already named Julia, so these become MUTUAL LINKS.

22. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto Andrew and Alicia have already named Ken, so these become MUTUAL LINKS.

23. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto

24. PersonContact1Contact 2 AliciaJuliaKen AndrewJuliaKen JohannJuliaTom JoshJuliaAlicia JuliaAndrewJosh KenAndrewAlicia RobertoJuliaKen TomJohannJosh Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto Johann has already named Tom, so this becomes a MUTUAL LINK.

25. Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto The network is now complete, but moving Tom will make it easier to see whats going on.

26. Drawing contact networks Julia Ken Andrew AliciaJosh Tom Johann Roberto We could usefully move Roberto also.

27. Drawing contact networks Julia Ken Andrew Alicia Josh Tom Johann Roberto … and Andrew.

28. Drawing contact networks Julia Ken Andrew Alicia Josh Tom Johann Roberto

29. The completed network Julia Ken Andrew TomAliciaJosh Roberto Johann