Communicable diseases key terms

pathogens

Microorganisms that cause infectious diseases, including viruses, bacteria, protists, and fungi.

infectious disease

A disease caused by pathogens that can be transmitted from one individual to another.

pathogens

Microorganisms that cause infectious diseases, which can be classified as viruses, bacteria, protists, or fungi.

infectious diseases

In Communicable (infectious) diseases, infectious diseases refers to diseases caused by pathogens that can spread from one organism to another. This matters in Communicable diseases because it supports the learning objective to state that pathogens may be viruses, bacteria, protists or fungi. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

pathogens

In Communicable (infectious) diseases, pathogens refers to microorganisms that cause infectious diseases, which can infect both plants and animals. This matters in Communicable diseases because it supports the learning objective to explain that pathogens may infect plants or animals. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

infection

The process by which pathogens invade and multiply within a host organism, potentially causing disease.

pathogens

Microorganisms that cause infectious diseases, including viruses, bacteria, protists, and fungi.

transmission

The process by which pathogens spread from one host to another, which can occur through direct contact, water, or air.

pathogens

Microorganisms such as viruses, bacteria, protists, or fungi that cause infectious diseases.

transmission

The process by which diseases caused by pathogens are spread between animals and plants.

disease prevention

In Communicable (infectious) diseases, disease prevention refers to methods and strategies used to reduce the risk of spreading infectious diseases. This matters in Communicable diseases because it supports the learning objective to explain how the spread of diseases can be reduced or prevented. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

transmission routes

The various ways in which pathogens can spread, including direct contact, water, and air.

bacteria

In Communicable (infectious) diseases, bacteria refers to single-celled microorganisms that can reproduce rapidly and may cause infectious diseases. This matters in Communicable diseases because it supports the learning objective to explain that bacteria and viruses may reproduce rapidly inside the body. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

viruses

Microscopic pathogens that require living cells to reproduce and can cause various diseases.

toxins

In Communicable (infectious) diseases, toxins refers to substances produced by bacteria that can damage tissues and lead to illness. This matters in Communicable diseases because it supports the learning objective to explain that bacteria may produce toxins that damage tissues and make us feel ill. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

bacteria

In Communicable (infectious) diseases, bacteria refers to microorganisms that can reproduce rapidly and may produce toxins causing harm to the host. This matters in Communicable diseases because it supports the learning objective to explain that bacteria may produce toxins that damage tissues and make us feel ill. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

viruses

In Communicable (infectious) diseases, viruses refers to microorganisms that can live and reproduce inside host cells, often causing cell damage. This matters in Communicable diseases because it supports the learning objective to explain that viruses live and reproduce inside cells, causing cell damage. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

cell damage

In Communicable (infectious) diseases, cell damage refers to harm caused to cells as a result of viral reproduction, which can lead to illness. This matters in Communicable diseases because it supports the learning objective to explain that viruses live and reproduce inside cells, causing cell damage. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

measles

In Viral diseases, measles refers to a viral disease characterized by fever and a red skin rash. This matters in Communicable diseases because it supports the learning objective to describe measles as a viral disease that causes fever and a red skin rash. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

viral disease

An illness caused by viruses, which can lead to various symptoms and health complications.

measles

A viral disease characterized by fever and a red skin rash, which can lead to serious complications.

complications

Additional health problems that can arise from an illness, potentially making it more severe or fatal.

vaccination

A medical process that involves administering a vaccine to stimulate the immune system and provide protection against specific diseases.

measles

A highly contagious viral disease characterized by symptoms such as fever and a red skin rash, which can lead to serious complications.

measles virus

In Viral diseases, measles virus refers to a viral infection that is spread by inhalation of droplets from coughs and sneezes. This matters in Communicable diseases because it supports the learning objective to explain that the measles virus is spread by inhalation of droplets from coughs and sneezes. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

inhalation

The process of breathing in air that may contain infectious droplets, facilitating the spread of viruses like measles.

HIV

In Viral diseases, HIV refers to a viral disease that initially causes flu-like symptoms and attacks the body's immune cells. This matters in Communicable diseases because it supports the learning objective to describe HIV as a viral disease that initially causes a flu-like illness. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

flu-like illness

In Viral diseases, flu-like illness refers to initial symptoms associated with HIV, resembling those of the common flu. This matters in Communicable diseases because it supports the learning objective to describe HIV as a viral disease that initially causes a flu-like illness. Students should use this term accurately when they explain the biology, identify symptoms, or justify an answer in GCSE Biology questions.

HIV

A viral disease that attacks the body's immune cells and can lead to late-stage infection or AIDS if not controlled.

immune cells

Cells in the body that are part of the immune system and help to fight infections, which are targeted by HIV.