Common Bacterial Diseases in Humans

What are Bacterial Diseases?

Bacterial diseases are the diseases caused by bacteria. There are a number of bacteria found in the human body. A variety of these do not cause any infections and are known as “good bacteria”. The bacteria that cause diseases in human are called “harmful bacteria”.

Read on to explore the bacterial diseases in humans caused by the harmful bacteria along with the causes and symptoms.

Also Read: Human Diseases

Bacterial Diseases


Bacterial Diseases in Humans

There are a variety of bacteria that cause diseases in humans. These include:

Bacterial Diseases in Humans Causative Agent
Pulmonary Tuberculosis Mycobacterium tuberculosis


Corynebacterium diptheriae


Vibrio cholerae


Mycobacterium leprae


Bordetella pertussis


Clostridium tetani


Yersinia pestis

Neisseria gonorrhoeae


Treponema pallidum

Salmonella enteritis

Bacterial Diseases Causes

The bacteria enter the human variety through various sources and cause bacterial diseases. These sources include:

  • Through contaminated food and water.
  • Having sexual contact with an infected person.
  • Sharing contaminated needles, or needles for tattooing.
  • Through infected faeces or body fluids.

Bacterial Disease Symptoms

Following are the major symptoms of bacterial diseases:

  • Bloody and painful urine
  • Irritability
  • Diarrhoea
  • Vomiting and nausea
  • Weakness
  • Stiffness in neck
  • Flu-like symptoms
  • Rashes and lesions

Risk Factors Involved

  • Infants and children.
  • Eating raw or undercooked egg and meat.
  • Malnutrition.
  • Chronic diseases.
  • Genetic factors.
  • Immunodeficiency disorders.

Also Read: Infectious Diseases

To know more about what are bacterial diseases, its causes, symptoms and the bacterial diseases in humans, keep visiting BYJU’S website or download BYJU’S app for further reference.


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