A cartoon from the 1880s.

What does the cartoon show? Look at the version on p.125, too for details

How useful is it in understanding how scientists helped to improve the treatment of disease?

How important was How important was Robert Koch?Robert Koch?

TBAT explain the key TBAT explain the key achievements of Koch and achievements of Koch and compare his work to Louis compare his work to Louis

PasteurPasteur

LOs

Key words: anthrax Petri dish

What has this got to do with germ theory? Read p.124-5 to find out Pasteur once said, ‘Chance favours the prepared mind’ – who does this more apply to, the

work of Pasteur or Koch?

Your taskYour task Read about the work of Read about the work of

Robert Koch. On p.124-5Robert Koch. On p.124-5 Around the picture of a Around the picture of a

Petri dish record evidence Petri dish record evidence of how these factors of how these factors helped: war; technology; helped: war; technology; individual genius; chanceindividual genius; chance

Supplement your notes on Supplement your notes on PasteurPasteur

Identify other factors in Identify other factors in the development of Germ the development of Germ TheoryTheory

Koch - factorsKoch - factors War: Franco-Prussian War, 1870-1 turned the War: Franco-Prussian War, 1870-1 turned the

two into rivalstwo into rivals Technology: had a well-equipped laboratory Technology: had a well-equipped laboratory

like Pasteur; used photography to record like Pasteur; used photography to record bacteria; grew bacteria on petri dishes (and bacteria; grew bacteria on petri dishes (and potatoes!); used dyes to identify bacteria, e.g. potatoes!); used dyes to identify bacteria, e.g. TB; microscopeTB; microscope

Individual genius: first to prove an individual Individual genius: first to prove an individual bacterium caused disease - Anthraxbacterium caused disease - Anthrax

ChanceChance Other factors?Other factors?

Pasteur - factorsPasteur - factors TeamsTeams: worked in teams, e.g. including : worked in teams, e.g. including

Charles Chamberland, on development of Charles Chamberland, on development of vaccine for chicken choleravaccine for chicken cholera

TradeTrade: farmers wanted cure for chicken : farmers wanted cure for chicken cholera which was decimating industrycholera which was decimating industry

ChanceChance: Chamberland injected chickens : Chamberland injected chickens with old strain of chicken cholera bacteria; with old strain of chicken cholera bacteria; tested rabies vaccine on Joseph Meistertested rabies vaccine on Joseph Meister

Attitudes & enquiryAttitudes & enquiry: Pasteur familiar with : Pasteur familiar with Jenner’s work; injected Meister 13xJenner’s work; injected Meister 13x

This house believes Pasteur contributed more towards the treatment of disease

HomeworkHomework Who contributed more to Who contributed more to

the treatment of disease?the treatment of disease? Louis PasteurLouis Pasteur Robert KochRobert Koch

Remember to include an Remember to include an introduction, use topic introduction, use topic paragraphs (one for each paragraphs (one for each individual) and reach a individual) and reach a conclusion.conclusion.

Use detailed evidence Use detailed evidence from your notesfrom your notes

Robert Koch, German scientist in his laboratory

Extension taskExtension task

Visit the History Learning website to Visit the History Learning website to find out more about Robert Koch and find out more about Robert Koch and Louis Pasteur.Louis Pasteur.

Write an imaginary interview with Write an imaginary interview with PasteurPasteur