In 1847, a Hungarian obstetrician working at the Vienna General Hospital discovered a way to prevent one of the most deadly dangers facing women in childbirth. By ordering doctors and medical students to wash their hands in chlorine solution before examining patients, ignaz semmelweis Virtually reduce fever deaths of children in hospital doctors’ wards From one mother in ten to almost one in eighty within a year.The numbers were hard to ignore. Yet instead of changing medical practice throughout Europe, Semmelweis faced criticism from many of his colleagues. He could prove that his method worked, but he could not explain why. The distinction between evidence and scientific theory would define the rest of his career.
Fatal difference between two wards
This secret was clearly hidden in the Vienna General Hospital.There were two maternity clinics in the hospital. The first maternity clinic trained doctors and medical students. Others trained midwives. Women were recruited on different days, so the patients were divided more or less randomly.Yet the results were very different.During the six years before Semmelweis introduced hand washing, about one mother in ten died of infantile fever in doctors’ clinics. In the midwives’ clinic, the mortality rate was close to one in thirty.Women knew the statistics. Many pleaded to be admitted to the midwives’ ward rather than the doctors’ ward because they believed their chances of survival after delivery were better there.Women treated by doctors were not poorer or sicker than women treated by midwives. The difference was somewhere else.
The accepted explanation did not fit.
At the time, most physicians attributed disease to miasma, the idea that diseases were spread by poisonous or “bad” air rising from decaying matter.Semmelweis found a lot of problems with that explanation.If bad air caused the children to develop fever, both wards should have been affected almost equally as they were in the same hospital. Women who gave birth at home or delivered before reaching the hospital should have died at the same rate. Instead, they had childbed fevers much less often than the women who received treatment at doctors’ clinics.Semmelweis began testing every explanation he could think of.He found the overcrowding, the climate and even the route taken by the priest through the ward to be so intimidating to the patients that their health suffered. None of those ideas match the evidence.A big gap remained. Medical students spent their mornings dissecting human bodies before going to the maternity ward to examine women in labor. Many people did this without washing hands.
The death of a co-worker changes everything
The turning point came in 1847 after the death of Semmelweis’s friend, Professor of Forensic Medicine Jakub Koletschka.Koletska accidentally cuts her finger while performing an autopsy. She later died of an illness that, according to Semmelweis, was very similar to the fever that was killing new mothers.Semmelweis came to a conclusion that challenged accepted medical thinking.If the contents of a corpse could enter Koletska’s bloodstream through the wound and kill her, then perhaps the doctors and students were carrying the same deadly materials from the dissection room into the women’s bodies during childbirth.He called these substances “cadaveric particles”.He had no microscope images to support this idea and no knowledge about bacteria or germs. He just had a pattern that seemed impossible to ignore.
The order that transformed the ward
In the spring of 1847, Semmelweis ordered everyone working at the First Clinic to wash their hands in a solution of chlorinated lime before examining patients.He chose chlorine because it removes the odor from dissection. He reasoned that if it eliminated the smell of decay, it could also eliminate whatever caused the disease.The results were immediate.Deaths from fever among children, which had reached nearly 18 percent in 1847, dropped to just over 1 percent the following year. The death rate remained around one to two percent in the months after the order was implemented.Later, after Pest went to a hospital, Semmelweis again applied the same hand-washing regimen. Maternal mortality once again fell below 1 percent.He recorded each result carefully because the statistics were the strongest evidence he had.He had no medical theory that physicians were willing to accept in 1847. All they had were columns of hospital records that showed mothers stopped dying when doctors washed their hands.
Why wasn’t the evidence enough?
The popular version of Semmelweis’s story shows him as a lone genius defeated by many foolish colleagues.The reality was more complex.His results were real, but they came from observations inside a busy hospital rather than a controlled scientific experiment. There was more variation in hand washing between the two clinics, and Semmelweis could not isolate every possible factor.He was almost certainly right, but the evidence available to him was not as neat as later accounts sometimes suggest.His colleagues also faced a real scientific problem.Germ theory did not yet exist. “Cadavers particles” described an effect without explaining the mechanism behind it. Doctors were being asked to admit that their own hands were killing patients, without citing any invisible cause that they could see or understand.This was a difficult claim for many to accept.
Growing battle with the medical establishment
Semmelweis also made his case difficult to win.Although he had collected years of evidence, he delayed publishing his findings. When he finally released his book in 1861, it was long, dense, and often confrontational.Instead of responding patiently to critics, he often responded angrily.Leading figures in European medicine opposed his findings. Pathologist Rudolf Virchow was also included among them.Closer to home, Semmelweis’s own superiors in the hospital continued to support the bad air theory. He disagreed that hand washing led to a decline in deaths, and Semmelweis was ultimately dismissed from his position.Political tensions posed another obstacle. Semmelweis supported the Hungarian Revolution of 1848, which led to further tensions between Vienna and Hungary.
a sad ending
After leaving Vienna, Semmelweis’s behavior became suspicious in the late 1850s. In 1865, he was admitted to a mental asylum, where he died within a few weeks.Even today historians continue to debate the cause of his mental decline and the exact circumstances of his death. One account states that he died of infection after being beaten by attendants. The man who dedicated his career to preventing one type of deadly infection may himself have died from another type of infection.
recognized after his death
Semmelweis’s interpretation never came within a generation.Louis Pasteur established that living microbes cause infectious disease, giving scientists a mechanism that Semmelweis did not have. Taking those ideas forward, Joseph Lister introduced antiseptic surgery from 1867.Once germs were accepted as the cause of infection, the hospital records collected by Semmelweis no longer seemed like coincidences. They became powerful evidence that hand washing saves lives.The years between Semmelweis’s work in Vienna and Lister’s reforms came at a heavy cost. Mothers continued to die from infections that could often be prevented with a basin of chlorinated solution, even in hospitals that had seen Semmelweis’s numbers and rejected them.Today, his name lives on through a university and, since 2015, a global day dedicated to hand hygiene.The women in her ward never needed a complicated theory of germs. They only required doctors to wash their hands.