active immunity
基础释义：主动免疫active immunity是一个生物学概念，指身体通过免疫系统产生抗体，从而对特定的病原体产生免疫力。
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英语范文：
标题： Understanding Active Immunity
Active immunity is a crucial component of our immune system. It refers to the body's ability to generate antibodies against specific pathogens, thus providing protection against future infections.
Through active immunity, our bodies are able to recognize and fight off invading microbes, preventing them from causing harm. This process begins with a trigger, such as a vaccine or a pathogen itself, which stimulates the immune system to produce antibodies. These antibodies then circulate in the bloodstream and attach themselves to any similar invaders, preventing them from entering cells and causing infection.
Vaccines are a prime example of how active immunity works. They contain weakened or dead pathogens that stimulate the immune system to produce antibodies against them. Once these vaccines are administered, they prime the body's immune response, providing protection against future infections caused by the same pathogen.
However, active immunity is not a perfect defense. Sometimes, even with robust antibodies, we may still be vulnerable to certain infections. This is because the immune system is constantly adapting and evolving to combat new threats, and it may not always be able to respond quickly enough in certain situations.
Overall, active immunity is an essential component of our overall health and well-being. Understanding its role and how it works can help us better manage our immune systems and prevent infections.
active immunity
Active immunity refers to the immune response that occurs when a person's body produces antibodies against a specific antigen. This type of immunity is typically acquired through vaccination or natural exposure to the antigen.
In the context of vaccination, active immunity is essential for protecting individuals from diseases. Vaccines work by introducing a weakened or killed version of the disease-causing microorganism or its antigenic components. Through the body's immune response, the vaccine stimulates the production of antibodies that will later recognize and fight off any real-life exposure to the same pathogen.
However, active immunity is not always effective in preventing disease. This can be due to various factors, including vaccine failure, improper administration, or natural variation in immune response. In these cases, passive immunity may be necessary to provide immediate protection.
In conclusion, active immunity plays a crucial role in protecting individuals from infectious diseases. It is essential for effective vaccination programs and ensuring that individuals are protected from disease. Understanding the factors that can affect active immunity and how to manage them is crucial for achieving optimal protection against infectious diseases.
例文：
"Active immunity is a crucial component of effective disease prevention. Through vaccination, we can stimulate the body's immune system to produce antibodies against specific antigens, which will later recognize and fight off any real-life exposure to the same pathogen. However, vaccine failure and other factors can impact the effectiveness of active immunity, so it is essential to understand these factors and manage them effectively."
On a personal level, active immunity has also had a profound impact on my life. As a result of receiving multiple vaccines throughout my childhood and adolescence, I have been able to avoid many diseases that would have otherwise been debilitating or even life-threatening. This has allowed me to live a healthy and active lifestyle, free from the constraints of illness.
active immunity
active immunity指的是身体通过免疫系统产生的免疫反应，使身体对特定的病原体产生免疫力。这种免疫反应通常是通过接种疫苗或自然感染病原体而产生的。
以下是一篇关于active immunity的英语作文，希望可以帮助到您。
Title: Active Immunity: The Power of the Immune System
When we think of immunity, we often associate it with the concept of being protected from diseases. However, there are two types of immunity-passive immunity and active immunity. Passive immunity is acquired from external sources such as vaccination or being infected with a pathogen, while active immunity is generated by the body's own immune system.
The immune system is a complex network of cells and proteins that work together to recognize and fight off foreign invaders, such as viruses and bacteria. When a pathogen enters the body, the immune system immediately launches a response, producing antibodies that target the invader and help to destroy it. This process is known as active immunity.
Active immunity is a lifelong protection that we receive from our immune system. It is important to maintain a healthy immune system to prevent infections and diseases. Vaccinations are a great way to boost our active immunity and protect ourselves from diseases that may be harmful to our health.
In conclusion, active immunity is the power of the immune system that protects us from foreign invaders. It is generated by our own immune system and provides a lifelong protection against diseases. Maintaining a healthy immune system and getting vaccinated are essential to maintaining our active immunity.
