
Diphtheria is a serious bacterial infection caused by Corynebacterium diphtheriae. It has been around for over 2,500 years, first noted by Hippocrates in the 5th century BC. It was a major killer of children, causing a gray membrane to form in the throat, choking its victims.
The name ‘diphtheria’ comes from the Greek word ‘diphthera,’ meaning leather hide. This refers to the gray membrane that forms in the throat. Edwin Klebs identified the bacterium in 1882, a key moment in understanding the disease. Thanks to vaccines, diphtheria is now very rare in the U.S. and other developed countries.
Key Takeaways
- Diphtheria is a serious bacterial infection caused by Corynebacterium diphtheriae.
- The disease has a long history, first described by Hippocrates in the 5th century BC.
- Widespread vaccination has made diphtheria extremely rare in developed countries.
- The bacterium was identified by Edwin Klebs in 1882.
- For more information on diphtheria, visit the CDC’s diphtheria page.
Understanding Diphtheria: A Deadly Bacterial Infection

Diphtheria is a bacterial infection caused by Corynebacterium diphtheriae. It has been a major health issue for centuries. We will explore its causes, symptoms, and complications if not treated.
What Causes Diphtheria
The main cause of diphtheria is the bacterium Corynebacterium diphtheriae. This bacterium makes toxins. These toxins can cause a thick, gray membrane to form on the throat and tonsils. This can make breathing and swallowing hard.
Historically, knowing the cause has helped in making vaccines. You can learn more about diphtheria immunization history to understand this better.
Symptoms and Complications
Symptoms of diphtheria include a thick, gray membrane on the throat and tonsils. Other symptoms are sore throat, swollen glands, trouble breathing, and fever. If not treated, diphtheria can cause serious problems like breathing issues, heart damage, and nerve damage.
These complications can be very serious and even life-threatening.
| Symptom/Complication | Description |
| Thick, gray membrane | Covers the throat and tonsils, causing difficulty breathing and swallowing |
| Sore throat | A common symptom that can range from mild to severe |
| Swollen glands | Can occur in the neck due to infection |
| Difficulty breathing | Can be life-threatening if the airway is obstructed |
| Fever | Can accompany the infection, indicating the body’s response |
It’s important to know the symptoms and complications of diphtheria. Early detection and treatment can greatly improve outcomes. Quick medical care is key for those infected with this deadly bacterial infection.
Diphtheria History: From Ancient Greece to Scientific Discovery

To understand diphtheria, we must travel through time. It was first noted by Hippocrates in the 5th century BC. This disease has been a major health issue for centuries, affecting many cultures and medical practices.
Early Documentation and Historical Significance
Hippocrates first mentioned diphtheria in ancient Greece. It was known by many names over time, showing its widespread presence. In old times, it was called “the strangling disease” because it blocks breathing with a throat membrane.
“The disease was a major cause of childhood mortality until the development of the diphtheria vaccine in the early 20th century.”
Diphtheria’s history is very important. It was a top killer of kids before vaccines were made. Its outbreaks pushed for big steps in medicine and vaccine making.
Etymology and Historical Names
The word “diphtheria” comes from the Greek “diphthera,” meaning “leather.” This refers to the tough membrane in infected throats. Diphtheria was also called “malignant angina” and “the disease of the membrane.” These names show how different cultures saw the disease.
| Historical Name | Description |
| The Strangling Disease | Named for the membrane that obstructs breathing |
| Malignant Angina | Reflects the disease’s severe throat symptoms |
| Disease of the Membrane | Describes the characteristic diphtheria membrane |
The Discovery of the Diphtheria Bacterium
In 1882, Edwin Klebs found the diphtheria bacterium, Corynebacterium diphtheriae. This was a key step in fighting the disease. It led to the making of the diphtheria toxin and vaccine.
The history of diphtheria shows how far we’ve come. From Hippocrates to today’s vaccines, it’s a story of medical progress and public health efforts.
Vaccine Development and Global Impact
The fight against diphtheria got a big boost with the diphtheria vaccine. It started in the 1890s and became common by the 1920s. A key moment was in 1924 when Gaston Ramon created the toxoid vaccine. This was a big step forward in diphtheria vaccine history.
The diphtheria vaccine has made a huge difference worldwide. Thanks to vaccines, diphtheria cases have dropped a lot. The vaccine changed how we see the disease, reducing infections where people get vaccinated often.
Knowing how the diphtheria vaccine was made helps us see how far we’ve come. Pioneers like Gaston Ramon have saved many lives. Keeping vaccination rates high is key to fighting diphtheria and preventing its return.
FAQ
What is diphtheria?
Diphtheria is a serious bacterial infection. It is caused by Corynebacterium diphtheriae. A gray membrane forms in the throat of those infected.
Where did diphtheria come from?
Diphtheria dates back to the 5th century BC. It was first described by Hippocrates, a Greek physician.
What are the symptoms of diphtheria?
Symptoms include breathing difficulties and heart damage. Nerve damage can also occur if not treated. A gray membrane in the throat is a key sign.
How is diphtheria diagnosed?
Diagnosis involves finding the Corynebacterium diphtheriae bacterium. This was made possible by Edwin Klebs in 1882.
When was the diphtheria vaccine developed?
The diphtheria vaccine was a major breakthrough. It has greatly reduced cases worldwide.
What is the history of the diphtheria vaccine?
The vaccine’s history is tied to understanding the disease. Key figures contributed after Edwin Klebs identified the bacterium.
Why is vaccination against diphtheria important?
Vaccination is key, even more so in areas with low rates. It remains a major public health issue.
What are the complications of untreated diphtheria?
Untreated diphtheria can cause serious issues. These include breathing problems, heart damage, and nerve damage.
How has diphtheria impacted public health historically?
Diphtheria was once a leading cause of childhood death. It was a major concern until the vaccine was developed.
What is the etymology of the name ‘diphtheria’?
The name ‘diphtheria’ comes from the Greek word ‘diphthera.’ It means leather hide. This refers to the gray membrane in the throat.
References
World Health Organization. Evidence-Based Medical Guidance. Retrieved from
https://www.who.int/news-room/fact-sheets/detail/diphtheria