What are the 3 types of diseases?

What are the 3 types of diseases?

There are four main types of disease: infectious diseases, deficiency diseases, hereditary diseases (including both genetic diseases and non-genetic hereditary diseases), and physiological diseases.

What are 3 ways infections can enter the body?

Entering the Human Host Microorganisms capable of causing disease—pathogens—usually enter our bodies through the mouth, eyes, nose, or urogenital openings, or through wounds or bites that breach the skin barrier.

What are 5 ways diseases are spread?

5 Common Ways Germs are Spread

• Nose, mouth, or eyes to hands to others: Germs can spread to the hands by sneezing, coughing, or rubbing the eyes and then can be transferred to other family members or friends.
• Hands to food:
• Food to hands to food:
• Infected child to hands to other children:
• Animals to people:

What are the 2 types of diseases?

Diseases can be grouped into two types:

• communicable , which are caused by pathogens and can be transferred from one person to another, or from one organism to another – in humans these include measles, food poisoning and malaria.
• non-communicable , which are not transferred between people or other organisms.

What are the 5 causes of disease?

Causes

• Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.
• Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS.
• Fungi.
• Parasites.

What are the three 3 main routes of transmission?

Routes of transmission

• Direct Contact Transmission. Direct contact transmission occurs through direct body contact with the tissues or fluids of an infected individual.
• Fomite Transmission.
• Aerosol (Airborne) Transmission.
• Oral (Ingestion) Transmission.
• Vector-Borne Transmission.
• Zoonotic Transmission.

What are 3 ways to reduce possible spread of infection?

Prevent the spread of infectious disease

• Immunise against infectious diseases.
• Wash and dry your hands regularly and well.
• Stay at home if you are sick.
• Cover coughs and sneezes.
• Clean surfaces regularly.
• Ventilate your home.
• Prepare food safely.
• Practise safe sex.

What are the 4 ways infections can be transmitted?

Germs can spread from person to person through:

• the air as droplets or aerosol particles.
• faecal-oral spread.
• blood or other body fluids.
• skin or mucous membrane contact.
• sexual contact.

What are the 5 diseases?

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.

What are the 6 types of diseases?

6 infectious disease types that continue to burden US

• Rima F.
• Vaccine preventable diseases.
• HAIs.
• Zoonotic and vector-borne diseases.
• Foodborne illness.
• HIV and STIs.
• Chronic hepatitis.
• For more information:

How diseases are caused Class 6?

Diseases that occur due to lack of nutrients over a long period are cellule Deficiency diseases or nutritional disease. Deficiency of one or more nutrients can cause disease or disorders in our body. For example, wheat is rich in carbohydrates, but poor in nutrients like protein and fuls.

What are the causes of disease Class 9?

Immediate cause: The organisms that enter our body and cause the disease are termed as an immediate cause. For example, virus, bacteria, protozoa etc. Contributory cause: The secondary factors which led these organisms enter our body are termed as a contributory cause.

What are the three ways infectious diseases can be spread?

Three ways infectious diseases can be spread through direct contact are: Person to person. A common way for infectious diseases to spread is through the direct transfer of bacteria, viruses or other germs from one person to another.

What are some examples of infectious diseases?

Some infectious diseases are not spread by contact with an infected person but by contact with an environmental source such as animals, insects or soil. Examples of diseases spread this way are: legionellosis (compost/soil). Not all infectious diseases are spread in the same way, and some are more infectious than others.

What causes new infectious diseases to emerge?

There are many factors involved in the emergence of new infectious diseases or the re-emergence of “old” infectious diseases. Some result from natural processes such as the evolution of pathogens over time, but many are a result of human behavior and practices.

Can infectious diseases be passed from person to person?

Some infectious diseases can be passed from person to person. Some are transmitted by insects or other animals. And you may get others by consuming contaminated food or water or being exposed to organisms in the environment.