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Before antibiotics were developed, serious bacterial infections stood as a leading cause of death across developed nations. Most of us have relied on antibiotics at some stage to combat infections.
Prior to Alexander Fleming's groundbreaking discovery of penicillin, even minor injuries like scrapes or cuts could lead to fatal infections. In today's world, thanks to antibiotics, illness is often viewed as a temporary setback rather than a life-threatening issue. After all, who enjoys being unwell for longer than needed?
However, bacteria do more than just disrupt our daily lives. They remain deadly, even in the age of modern medicine. These microorganisms are evolving, developing resistance to antibiotics. Numerous infections now defy treatment, resulting in tens of thousands of deaths annually in the U.S. alone.
Despite this grim reality, some bacteria take their destructive capabilities to another level, causing more than just flu-like symptoms. They are the true architects of mortality. Keep reading . . . and you might never look at that public restroom door handle the same way again.
10. E. coli Hemorrhagic Colitis
E. coli bacteria can turn a day into a nightmare. Typically residing in the intestines, these microbes are harmless until certain strains, like those producing Shiga toxin, wreak havoc. This toxin is a dangerous intruder no one wants in their digestive system.
These harmful bacteria often enter the body through contaminated food or water tainted by fecal matter. In regions with inadequate sanitation, this poses a significant health risk.
Once inside, Shiga toxin–producing E. coli trigger a condition called hemorrhagic colitis. This results in severe, bloody diarrhea that, if left untreated, can lead to fatal dehydration, kidney failure, and excessive blood loss.
The primary treatment involves replenishing fluids orally and intravenously until the infection clears and the body recovers.
9. Scarlet Fever
A deadly menace in the 18th and 19th centuries, scarlet fever continues to appear even today. It devastated countless families, often wiping out multiple children in a single household. Historical figures like Charles Darwin experienced personal tragedy, losing a child to this relentless disease.
This illness is triggered by group A beta-hemolytic streptococci, a type of bacteria. It typically starts with symptoms resembling strep throat, such as a sore throat and fever. As it advances, a distinctive red, bumpy rash spreads from head to toe, giving the skin a scarlet hue. Another hallmark is a red, textured tongue resembling a strawberry.
If left untreated, scarlet fever can lead to severe complications like throat abscesses, heart damage, and kidney issues, which can be fatal. While antibiotics have made it manageable today, delayed or inadequate treatment can still result in death or long-term health consequences.
8. Tuberculosis
Pulmonary tuberculosis, the most prevalent form of this disease, struck terror into the hearts of people in the 19th century. Its origins trace back to ancient times, with Egyptian mummies showing skeletal evidence of tuberculosis. Notable figures like Franz Kafka and Henry David Thoreau succumbed to this relentless illness.
The bacterium Mycobacterium tuberculosis is responsible for all types of tuberculosis. Pulmonary tuberculosis, the most common variant, infects the lungs. Without treatment, the bacteria can become encapsulated and lie dormant for years.
Active tuberculosis can cause a range of respiratory symptoms, such as coughing up blood, significant weight loss, and breathing difficulties. In severe cases, the infection can spread to other organs, including the kidneys and bones.
Those battling this infection often experienced drastic weight loss, leading to a gaunt and emaciated appearance. This earned tuberculosis the grim nicknames “consumption” and “the white death.” Treatment typically involves a prolonged course of antibiotics, lasting from six months to several years.
7. Tetanus
Commonly referred to as “lockjaw” or “the grinning death,” tetanus is a strikingly severe illness. It was a significant complication of battlefield wounds during the Napoleonic Wars. The bacterium Clostridium tetani, found in dirt or contaminated soil, is the culprit behind this disease.
The deadly effects of tetanus are due to a potent neurotoxin called tetanus toxin. This toxin permanently attaches to the junctions between nerves and muscles, triggering the intense and distinctive muscle spasms associated with the condition.
Those suffering from tetanus experience excruciating muscle spasms that can lock the jaw, grind teeth, and force an involuntary grin. The spasms are so powerful they can fracture bones, including the spine. Fatal outcomes often result from respiratory muscle paralysis, preventing breathing, or from secondary infections.
Tetanus is a fatal illness if not treated with appropriate medical intervention. Survival from this severe infection requires a combination of treatments, including skeletal muscle relaxants, antibiotics, antitoxins, immune globulins, and comprehensive supportive care. It is classified as a critical medical emergency.
6. Meningococcal Meningitis
Infections of the nervous system are always serious. Meningococcal meningitis involves the infection of the brain or spinal cord's protective layers by the bacterium Neisseria meningitidis. While it is found worldwide, its prevalence is highest in sub-Saharan Africa.
Meningococcal meningitis typically manifests as either an infection of the nervous system or a bloodstream infection. Symptoms of nervous system infection include fever, headache, stiff neck, vision disturbances, and nausea. Bloodstream infection may lead to a distinctive purple rash and internal bleeding. Although potentially lethal, the disease's impact has been significantly reduced thanks to vaccines.
5. Anthrax
Many might be surprised to learn that anthrax is not only the name of a heavy metal band but also a serious disease and a potential tool for bioterrorism. Caused by the bacterium Bacillus anthracis, anthrax can manifest in three primary forms: inhalational, cutaneous (affecting the skin), and gastrointestinal.
Anthrax is regarded as a possible biological weapon due to its airborne spores, which make inhalational anthrax particularly lethal. This method was infamously used in 2001 to spread the disease through contaminated US mail.
The cutaneous form of anthrax results in an ulcerative sore. If promptly treated and prevented from spreading, this version of the disease is generally less severe.
The inhalational form of anthrax poses a significant threat. Initially, it mimics flu-like symptoms, but it quickly escalates to severe chest pain and breathing difficulties. Without timely intervention, most patients succumb to bloodstream infections within days. Early detection and antibiotic treatment are crucial for survival.
Gastrointestinal anthrax is equally distressing. Contracted through consuming undercooked meat, it causes ulcers to develop anywhere along the digestive tract, from the mouth to the rectum, often resulting in severe internal bleeding.
Anthrax can also target the brain and spinal cord, adding to its lethality. Given its multiple deadly forms, the disease has set a high standard for any musical band sharing its name.
4. Leptospirosis
Leptospirosis stands apart from other illnesses due to its often subtle symptoms. It is caused by spiral-shaped bacteria known as Leptospira. While rare in the United States, it can be transmitted from animals to humans, typically through contact with animal urine.
The signs of leptospirosis can be nonspecific. Some infected individuals may remain asymptomatic, while others experience severe symptoms like jaundice and kidney failure, which can be fatal. The more severe form of the disease is referred to as Weil’s disease.
3. Necrotizing Fasciitis
Often referred to as “flesh-eating bacteria,” necrotizing fasciitis is a serious condition. While the bacteria don’t literally consume flesh, they infect tissues and deeper structures, causing tissue death and decay. Various bacteria can trigger this life-threatening infection.
The condition was first documented during the US Civil War, where a series of rapidly advancing cases involved necrotizing fasciitis in the genital area. Treatment typically requires a multidisciplinary approach, including surgical removal of infected tissue, and in severe cases, amputation may be necessary.
2. Toxic Megacolon Associated With Clostridium difficile Colitis
Diarrhea is more than just an inconvenient reason to skip work. While most people have experienced mild cases of diarrhea, few have encountered the severe intestinal infection that leads to toxic megacolon, a life-threatening condition.
In toxic megacolon, the intestines become severely infected and inflamed, causing the patient to become critically ill. In extreme cases, the intestines may swell to the point of rupture, necessitating urgent surgery. Among the various bacteria that can cause this condition, Clostridium difficile is particularly deadly.
Infection by Clostridium difficile happens when these harmful bacteria overpower the beneficial bacteria in a person’s gut. Without treatment, it can lead to severe intestinal inflammation and swelling. In extreme cases of toxic megacolon, even without perforation, nearly complete removal of the intestines may be required to save the patient’s life.
1. Syphilis
Sexually transmitted infections are on the rise in the United States. Whether due to dating apps or shifts in culture, it’s clear that caution is essential in sexual relationships.
Syphilis, often called the “great imitator” due to its diverse symptoms, has a storied history of stigma. Nations historically blamed each other for its spread, often pointing fingers at foreign populations. Wartime outbreaks were frequent, and even notable figures like Vincent van Gogh and Beethoven are believed to have suffered from this disease.
Caused by the bacterium Treponema pallidum, syphilis progresses through three stages: primary, secondary, and tertiary. The primary stage is marked by the appearance of a painless sore (chancre), typically on the genitals, which may heal unnoticed or go undetected entirely.
As syphilis advances, the patient experiences flu-like symptoms, marking the onset of the secondary stage. This phase may include a widespread rash, hair loss, persistent headaches, and liver inflammation. The disease can remain dormant for decades, eventually progressing to the late or tertiary stage.
During the final phase, patients may suffer from disfiguring sores, cardiovascular complications, central nervous system infections, and a severe mental decline referred to as “general paresis of the insane.”
