Helen Keller lost both her sight and hearing at 19 months old after a severe fever struck in February 1882. The illness came on suddenly, and her family’s doctor at the time called it “acute congestion of the stomach and brain,” a vague diagnosis common in 19th-century medicine. The fever broke just as suddenly as it arrived, and her family rejoiced that she had survived. But in the days that followed, they realized Helen could no longer see or hear.
The Illness That Changed Everything
Helen Keller was born healthy in 1880 in Tuscumbia, Alabama. She had normal sight and hearing for her first year and a half of life. Then, at 19 months, she developed a high fever that her doctor didn’t expect her to survive. In her own words, the illness “closed my eyes and ears and plunged me into the unconsciousness of a new-born baby.” When the fever passed, it left her completely deafblind.
For over a century, historians and physicians have debated what the illness actually was. Historical biographies have attributed it to rubella, scarlet fever, encephalitis, or meningitis. A detailed analysis published in the journal Clinical Infectious Diseases examined the historical evidence and concluded that Keller most likely had bacterial meningitis, an infection that causes swelling of the membranes surrounding the brain and spinal cord. The researchers pointed to two likely culprits: bacteria that cause meningococcal disease or a type of bacterial infection now preventable by childhood vaccines. Both were common causes of deafness and blindness in young children before vaccines existed.
The sudden onset of high fever, the rapid resolution, and the devastating sensory loss all fit the pattern of bacterial meningitis in a toddler. Scarlet fever, another popular theory, rarely causes both deafness and blindness together.
What Deafblindness Meant for Keller
Keller’s combined loss of sight and hearing was profound. Deafblindness is more than the sum of losing two senses: it means one sense cannot compensate for the loss of the other. A blind person can rely on sound to navigate the world, and a deaf person can rely on sight. Keller had neither option. She lost her vision and hearing before she had acquired language, which meant she had no words, no system of communication, and no way to understand the people around her.
For nearly five years, from the time of her illness until the arrival of her teacher Anne Sullivan in 1887, Keller lived in near-total isolation from language. She had developed a handful of crude home signs with her family, but she had no real means of expressing complex thoughts or understanding others. Sullivan’s breakthrough was teaching Keller to connect the finger-spelled letters pressed into her palm with the objects they represented.
How She Learned to Communicate
Sullivan used a manual alphabet, spelling words directly into Keller’s hand. This became Keller’s primary language. But Keller also desperately wanted to speak aloud. On March 26, 1890, when she was nine years old, she spelled out to Sullivan: “I must speak.”
Sullivan brought Keller to Sarah Fuller, a speech teacher in Boston. Fuller placed Keller’s fingers on her teeth and throat so Keller could feel the vibrations and positions involved in making sounds. Keller caught on remarkably fast. During that first lesson, Fuller made the sound “i,” and Keller immediately arranged her own tongue and teeth to produce a near-perfect echo of it. This technique, later known as the Tadoma method, involved pressing fingers against a speaker’s cheek, lips, and neck to feel the movements and vibrations of speech.
After that first lesson, Keller rode the streetcar home and told Sullivan, “I am not dumb now.” She continued speech training for years, and she did learn to speak. But the reality was complicated. Her pronunciation was often unusual, with words broken into syllables like “lov-ed” and “plea-su-re.” Her speech was difficult for most people to understand. Those closest to her, like Sullivan and Alexander Graham Bell (who championed oral education for deaf people), maintained that her speech was clear. But outside that small circle, listeners often struggled to follow her. Sullivan typically repeated or interpreted Keller’s words for audiences.
Her Later Years and Health
Keller went on to graduate from Radcliffe College, write multiple books, and become one of the most recognized advocates for disability rights in history. Her exam papers, school work, and handwriting are preserved in the archives at the Perkins School for the Blind, where they remain accessible to researchers and the public. A children’s magazine article from 1892, written by Keller herself at age 12, includes a sample of her clear handwriting along with her explanation of how she was able to write.
In her 80s, Keller’s health declined. She suffered a series of strokes in 1961 and spent her remaining years at her home in Connecticut. She died in her sleep on June 1, 1968, a few weeks before her 88th birthday.
Why Some People Question Her Story
A recurring thread online, particularly on social media, questions whether Keller’s accomplishments were real or whether her disabilities were exaggerated. The Perkins School for the Blind has addressed these claims directly, pointing to the extensive archival collections documenting her education, including her exam papers, school work, and personal correspondence. These materials show a clear progression from a child learning to form letters to a young woman writing essays and passing college entrance exams. The skepticism tends to reflect an underestimation of what deafblind people can achieve with the right support and education rather than any gap in the historical record.