In 1928 Alexander Fleming discovered penicillin by chance after leaving petri dishes out whilst on holiday.
Ernst Florey and Howard Chain read Alexander Fleming's article about penicillin and asked the British government for funding but were only given £25.
They tested penicillin on policeman Albert Alexander who had an eye infection and it worked until they ran out of penicillin.
When America joined WW2 they gave $80 million to develop and mass produce penicillin.
By the time of the D-Day landings there was enough penicillin to treat the casualties.
Other antibiotics followed including streptomycin, tetracycline, mitomycin.
In recent years there have been antibiotic resistant bacteria due to overuse including MRSA.
Today there are also a variety of alternative treatments including acupuncture, homeopathy and aromatherapy.
Vaccines for diphtheria, whooping cough, polio, rubella, MMR and HPV are now available for all.
X-rays were discovered in 1895 by Wilhelm Rontgen but portable machines could help doctors find shrapnel and look for broken bones without cutting people open.
The Army Leg Splint was designed to put broken bones in traction.
Infections such as gangrene were common so surgeons cut away the infected flesh and soaked the wound in saline.
Shell shock was identified during the war after the suffers originally being treated as cowards.
Karl Landsteiner had discovered blood groups which helped doctors complete blood transfusions.
In 1914 Albert Hustin discovered that glucose and sodium could stop blood clotting on contact with air meaning it could be bottled.
By 1921, over 5000 patients had plastic surgery.
Booth and Rowntree's work highlighted that poverty was an issue in Britain.
The NHS began in 1948 with a budget of £116 billion.
During WW1, Albert Hustin and storage of blood were significant developments.
In his book 'Life and Labour of the People in London', Booth stated that 30% of the population lived in poverty despite working.
Public Health was a significant issue in 1928 when penicillin was discovered.
Seebohm Rowntree discovered that 28% of the population were in poverty but also that this could change during their lifetime.
The Beveridge Report in 1942 stated that people had the right to be free of the 'five giants' that could ruin their lives: disease, want, ignorance, idleness, and squalor.
By 1900, poverty was still an issue in Britain, highlighted by the Boer War of 1899-1902.
The National Insurance Act was introduced in 1911.
The Welfare State was set up by the Labour Party to care for people 'from the cradle to the grave'.
In the C21st, the government continues to try and improve health, with a smoking ban passed in public places in 2006 and extended to cars in 2015.
40% of the men who volunteered for the Boer War were not fit for military service, mostly due to poor diet and poverty-related illnesses.
The first job centres were established in 1909.
Booth created a map showing many areas of poverty in London.
In 1938 advances in storage mean the National Blood Transfusion Service opened.
Harold Gillies developed plastic surgery to help men who suffered severe facial wounds during WW1 by 1921 he had treated over 5000 servicemen.
In WW2 his cousin Archibald McIndoe did further work on faces and hands.
Heart surgery progressed through Dwight Harken who operated on 134 hearts with no fatalities.
Since the war there have been kidney, heart, lung, liver and facial transplants.
These transplants became more successful with cyclosporine to stop organ rejection.
DNA and stem cells are being mapped and used to grow new organs.
The distribution of poverty across London is being mapped.
In 1891, Emil von Behring produced an antitoxin from the blood of animals that had just recovered from diphtheria, which could be used to reduce the effect of the disease.
Ronald Ross received the Nobel Prize in 1902 for his discovery on how malaria is transmitted.