Medicine - 1900s

Ehrlich

Ehrlich

Magic bullets

Ehrlich&team began search for magic bullets

1899

Magic bullets - chemical dyes that kill specific microbe in body without harming the rest of the body

starts looking for syphilis magic bullet

1907

following the discovery of the microbe that caused syphilis in 1906

they tested 600 arsenic compounds to no success

1907

Hata joins the group and finds Salverson 606

1909

it had been tested before but had been ruled out, don't know why. Hata japanese bacteriologist.

Salverson 606 used for the first time on human

1911

Penicillin

Fleming, Florey and Chain

Fleming discovers mould that killed germs

1928

Fleming published his findings

1929

following no development or financial support to continue his research

Florey and team decide to investigate germ-killing substances

1938

first experiment success with penicillin

1940

8 mice injected with streptococci, four treated with penicillin (these survived) and four not (these died).

began to investigate on human with blood poisoning

1940

he began to recover after treatment but then died when their supplies ran out.

Fleming saves friend using Florey's penicillin.

1942

Paper published it and it was said Fleming was responsible so he received most of the credit

mass production by british firms of penicillin

1943

money poured into it because of the war