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Human Diseases

The following article encompasses everything about human diseases. A disease is any adverse variation from an organism's normal structure, usually accompanied by certain signs and symptoms.

Introduction:

A human being throughout his life deals with many human diseases. Do you know what human diseases are?  Human disease can be defined as an illness that is caused by multiple factors, which makes the body function abnormally. If any organ or any part or tissue of the body is not working properly, it will release some symptoms that will indicate the type of human disease. Different organs of the body release different kinds of symptoms. Human diseases can engulf any age group. There are majorly four categories of human diseases.

What are Human Diseases?

The basic definition of human disease is a kind of malfunctioning in any part or any organ or any tissue of the body; then, it is referred to as a human disease. If any organ or any part or tissue of the body is not working properly, it will release some symptoms that will indicate the type of human disease. The symptoms indicate the type of disease and which organ it will affect. After observing the symptoms, we get a clear idea about the category and cure of the human disease. Symptoms play an important role in the identification and cure of the diseases.

Types of Human Diseases:

There are four categories of human diseases:

  • Bacterial Diseases

Some ailments caused by bacteria are referred to as bacterial diseases. Improved sanitation, vaccines, and antibiotics have reduced bacterial infection fatality rates. However, antibiotic-resistant strains have resurrected several diseases.

  • Viral Diseases

The virus causes viral diseases. Viral diseases can enter your body through air, by touching something with viruses on it, through physical contact, and through mosquito or tick bites. The composition of viruses is the genetic material that may be RNA or DNA. This genetic material is enclosed in a coat of protein. 

The process used by viruses is very simple. They just multiply and repeat! This means that once a virus enters the body of any host, it just stays there, nutritions itself, and multiplies, generating more of its kind. This process usually damages the infected cells of our body. 

It is believed that viruses are always contagious. But that’s not the case. It’s not that viruses always spread from one person to the other. They may spread through other means, such as the bite of an infected insect or any other medium.

The best prevention of viral diseases is to practice good personal hygiene. Limiting interactions with people who show symptoms of viral diseases is the most helpful prevention method. Other than this, one can wash their hands more often, cover their mouth when they cough or sneeze, etc.

  • Protozoan Diseases

Protozoan Diseases is also known as Protozoa. Protozoan Disease(Protozoa) is a heterotrophic, unicellular, eukaryotic organism. They are either for parasites or free-living. These are divided into six groups and number around 66000 species worldwide. They don’t have a cell wall, making them vulnerable to infection. Many different organelles perform various tasks carried out by various organs in the higher animals, such as the mouth, anus, and intestinal tract.

  • Helminthic Diseases

Some diseases are transmitted from the soil. Such infections are called helminths infections. Those places where poverty is prevalent are volatile for such infections. With the lack of sanitation, such infections can be transmitted easily. There are some basic symptoms of helminths, such as Vomiting, Abdominal pain. Apart from that, one can experience Weight loss. Reluctance on food is another symptom of helminths.

Common Diseases of each category of Human Diseases:

  1. Bacterial Diseases

  • Tuberculosis
  • Diphtheria
  • Whooping Cough(or Pertussis)
  • Cholera
  • Diarrhoea
  • Leprosy( or Hansen’s disease)
  • Tetanus
  • Pneumonia
  • Typhoid
  • Plague
  • Anthrax
  • Gonorrhoea
  • Syphilis

  1. Viral Diseases

  • Mumps
  • Measles
  • Chicken Pox
  • Poliomyelitis
  • Influenza( or flu)
  • Common cold
  • Rabies
  • Hepatitis
  • Dengue Fever
  • Yellow Fever

  1. Protozoan Diseases

  • Malaria
  • Kala Azar( Leishmaniasis)
  • Giardiasis
  • Trypanosomiasis
  • Amoebiasis

  1. Helminthic Diseases

Will discuss Helminthic Diseases in brief as many people are not aware of it.

  • ASCARIASIS
    • It is caused by Ascaris lumbricoides(Vector: Cockroaches and Flies
    • Its symptoms are weakness, anaemia, diarrhoea, vomiting etc.
  •  FILARIASIS
    • It is caused by Wucheria bancrofti. Transmitted by female Culex mosquito.
    • Also called Elephantiasis- due to enlargement of body parts like legs
    • Its symptoms are fever, and sometimes there is deposition in the walls of lymph vessels, resulting in swelling of affected parts.
  • TAENIASIS
    • It is caused by Taenia solium(or pork tapeworm), which pigs transmit.
    • Its symptoms are abdominal pain, indigestion, vomiting, constipation, anorexia(loss of appetite) and nervous disorder.

Conclusion:

In conclusion, we would like to mention that now we know everything about human diseases. If any organ or any part or tissue of the body is not working properly, it will release some symptoms that will indicate the type of human disease. The symptoms indicate the type of disease and which organ it will affect. After observing the symptoms, we get a clear idea about the category and cure of the human disease. Also, we have talked about various types of human diseases such as helminthic, protozoa, viral, and bacterial diseases and the various diseases that fall under these broad categories.