What Can Cause Infectious Diseases?

What are the 4 types of infectious diseases?

This article will focus on the most common and deadly types of infection: bacterial, viral, fungal, and prion.

What are some examples of infectious diseases?

Infectious diseases are diseases caused by living organisms like viruses and bacteria. They can be passed from person to person through body secretions, insects or other means. Examples are SARS, influenza, the common cold, tuberculosis (TB), Hepatitis A and B.

What are the 5 most common infectious diseases?

The 5 Most Common Infectious Diseases

  • Hepatitis B. According to current statistics, hepatitis B is the most common infectious disease in the world, affecting some 2 billion people — that’s more than one-quarter of the world’s population.
  • Malaria.
  • Hepatitis C.
  • Dengue.
  • Tuberculosis.

How do infectious diseases affect the body?

Infection occurs when viruses, bacteria, or other microbes enter your body and begin to multiply. In response to infection, your immune system springs into action. White blood cells, antibodies, and other mechanisms go to work to rid your body of the foreign invader.

What are the 10 most common diseases?

  1. Unintentional injuries.
  2. Chronic lower respiratory disease.
  3. Stroke and cerebrovascular diseases.
  4. Alzheimer’s disease. Deaths in 2017: 121,404.
  5. Diabetes. Deaths in 2017: 83,564.
  6. Influenza and pneumonia. Deaths in 2017: 55,672.
  7. Kidney disease. Deaths in 2017: 50,633.
  8. Suicide. Deaths in 2017: 47,173.

What is the most common infectious disease?

So, without further ado, here are the five most common infectious diseases.

  • Hepatitis B. According to current statistics, hepatitis B is the most common infectious disease in the world, affecting some 2 billion people — that’s more than one-quarter of the world’s population.
  • Malaria.
  • Hepatitis C.
  • Dengue.
  • Tuberculosis.
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What are the 6 deadliest infectious diseases?

  1. Deadliest Contagious Diseases By Death Toll.
  2. Comparison point: As of Sept.
  3. HIV/AIDS: 1.6 million deaths.
  4. Tuberculosis: 1.3 million deaths.
  5. Pneumonia: 1.1 million children under the age of 5.
  6. Infectious Diarrhea: 760,000 children under the age of 5.
  7. Malaria: 627,000 deaths.

What is a common infectious disease?

Mayo Clinic: “Infectious Diseases,” “Chlamydia trachomatis,” “Gonorrhea,” “Syphilis,” “Salmonella infection,” “Shigella infection,” “Hepatitis C,” “Influenza (flu),” “Staph infections,” “E. coli,” “Genital herpes,” “Norovirus infection,” ”Pneumonia,” “HIV/AIDS,” “Common cold.”

What is the nastiest disease?

The deadliest disease in the world is coronary artery disease (CAD). Also called ischemic heart disease, CAD occurs when the blood vessels that supply blood to the heart become narrowed.

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