There are four main types of disease: infectious diseases, deficiency diseases, inherited diseases (including both genetic diseases and non-genetic inherited diseases), and physiological diseases. Diseases can also be classified in other ways, as communicable against non-infectious diseases.

What disease is most common?

What disease is most common?

Main Causes of Death

  • Heart disease: 659,041.
  • Cancer: 599,601.
  • Accidents (unintentional injuries): 173,040.
  • Chronic lower respiratory diseases: 156,979.
  • Stroke (cerebrovascular disease): 150,005.
  • Alzheimer’s disease: 121,499.
  • Diabetes: 87,647.
  • Nephritis, nephrotic syndrome and nephrosis: 51,565.

Is lyme disease an infectious disease
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What are infectious diseases Class 9?

Infectious diseases are the diseases caused by various pathogenic microorganisms such as viruses, bacteria, protozoa, fungi and other parasites. On the same subject : How many zoonotic diseases are there. These infectious diseases can be transmitted by animals, humans, insects or other agents.

What are infectious disease and examples? Infectious diseases are diseases caused by living organisms such as viruses and bacteria. Described as contagious, they can be transmitted from person to person through body secretions, insects or other means. Examples are SARS, influenza, colds, tuberculosis (TB), Hepatitis A and B.

What is a primary infectious disease?

A primary infection is the first time you have been exposed to and infected with a pathogen. Read also : What do infectious disease doctors do. During a primary infection, your body has no innate defenses against the body, such as antibodies.

What is a secondary infectious disease? A secondary infection is a bacterial or viral disease that develops after the first disease. The second infection can develop because the human immune system is strained or weakened. The secondary infection can prolong the first infection or make it more severe.

What is an example of a primary pathogen? An example of a primary pathogen is entererohemorrhagic E. coli (EHEC), which produces a virulence factor known as Shiga toxin. This toxin impairs protein synthesis, leading to severe and bloody diarrhea, inflammation and kidney failure, even in patients with healthy immune systems.

What are the 4 most common communicable diseases?

Examples of the infectious disease include HIV, hepatitis A, B, and C, measles, salmonella, measles, and blood-borne diseases. This may interest you : How do infectious diseases spread. Common forms of spread include mouth-to-mouth, food, intercourse, insect bites, contact with contaminated fomites, droplets, or skin contact.

What are the 4 most common non-communicable diseases? The main types of NCD are cardiovascular diseases (such as heart attacks and strokes), cancers, chronic respiratory diseases (such as chronic obstructive pulmonary disease and asthma) and diabetes.

Which infectious disease is the most common? According to current statistics, hepatitis B is the most common infectious disease in the world, affecting about 2 billion people – more than a quarter of the world’s population.

What are the 4 types of infectious agents?

agents cause a wide range of diseases affecting various parts of the body. Read also : How infectious diseases spread. The five main types of infectious agents are bacteria, protozoa, viruses, parasitic worms and fungi.

What are the 4 main infectious agents? Infectious agents are organisms that are capable of producing an infection or an infectious disease. They include bacteria, fungi, viruses and parasites.

What are the most infectious diseases?

Perhaps the most notorious of all infectious diseases, bubonic plague and pneumonia plagues are probably the cause of the Black Death that raged across Asia, Europe and Africa in the 14th century killing about 50 million people.

Is COVID-19 an infectious disease? Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. On the same subject : What are infectious diseases examples.

When is coronavirus disease most contagious? Researchers estimate that people infected with the coronavirus can spread it for another 2 to 3 days before symptoms begin and are most contagious 1 to 2 days before they feel sick.

What is the name of the virus that causes COVID-19? COVID-19 (coronavirus disease 2019) is a disease caused by a virus called SARS-CoV-2 and was discovered in December 2019 in Wuhan, China.

What are infectious diseases examples?

What are Infectious Diseases? Infectious diseases are diseases caused by living organisms such as viruses and bacteria. Described as contagious, they can be transmitted from person to person through body secretions, insects or other means. On the same subject : How infectious diseases are spread. Examples are SARS, influenza, colds, tuberculosis (TB), Hepatitis A and B.

What are infectious diseases? Infectious diseases are disorders caused by organisms – such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They are usually harmless or even helpful. But under certain conditions, some organisms can cause disease. Some infectious diseases can be transmitted from person to person.

What is a infectious disease?

Infectious diseases are disorders caused by organisms – such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They are usually harmless or even helpful. Read also : What does infectious disease doctors do. But under certain conditions, some organisms can cause disease. Some infectious diseases can be transmitted from person to person.