infect
Definition
To infect something means to cause it to become sick by introducing harmful germs or viruses into it. Germs and viruses are very small organisms that can cause disease. They can spread from person to person through contact with bodily fluids, respiratory droplets, or contaminated objects.
Once a germ or virus enters the body, it can start to multiply and cause an infection. The body's immune system will try to fight off the infection, but sometimes the infection can be too strong and the person will get sick.
There are many different types of infections, including colds, the flu, and pneumonia. Some infections are very mild and go away on their own, while others can be serious and require medical treatment.
It is important to take steps to prevent infection, such as washing your hands frequently, getting vaccinated, and avoiding contact with people who are sick. If you do get infected, it is important to see a doctor for treatment.
How can the word be used?
The virus can infect people through contact with bodily fluids.
Different forms of the word
Noun: infection.
Verb: to infect.
Adjective: infected.
Adverb: infectiously.
Interjection: infect!
Etymology
The word "infect" comes from the Latin word "infectum", which means "to contaminate" or "to pollute". This is a very accurate description of the meaning of the word "infect", as it refers to the transmission of a disease from one organism to another.
Question
What does infect mean?
AQA Science Exam Question and Answer
Question:
Explain the process of infection and its impact on the human body, detailing how pathogens such as bacteria, viruses, and fungi invade and multiply within host cells, and discuss the role of the immune system in recognising and fighting infections.
Answer:
Infection is a complex biological process wherein harmful microorganisms, such as bacteria, viruses, and fungi, invade the body and reproduce within host cells. This can lead to a range of health issues, from mild illnesses to severe diseases.
Pathogens gain entry through various routes, such as inhalation, ingestion, or direct contact. Once inside, they attach to host cells, penetrate them, and use the cell's machinery to replicate. This often damages or destroys host cells, contributing to the manifestation of symptoms.
The immune system plays a pivotal role in defending against infections. It consists of specialised cells, such as white blood cells, that recognise foreign invaders and initiate an immune response. Antibodies, produced in response to the infection, target and neutralise pathogens. Memory cells retain information about the pathogens, enabling a faster response upon subsequent exposures.
In some cases, the immune system's response can lead to inflammation, which is both protective and a potential cause of tissue damage. Vaccination is a crucial strategy to prevent infections by priming the immune system to recognise and fight specific pathogens without causing illness.
In conclusion, infection involves the invasion and multiplication of pathogens within the body, often leading to a variety of health conditions. The immune system's intricate mechanisms act as a defence, recognising and neutralising these invaders to protect the body's overall well-being.