COVID-19 Vaccines & Immune Response Essay Example Ireland
COVID-19 is a disease and is caused because of Corona Virus. The disease came to the limelight on a global scale in the year 2019 and since then it became so widespread that it has adversely affected almost all nations across the earth.
The bad thing about Covid-19 disease is that not much is known about this disease. This is one of the prime reasons why the disease created havoc in recent times. It has resulted in the death of many thousands globally.
Moreover, as a consequence of the disease, major economies across the world got badly affected. Ireland is also one among the many nations that faced the devastating effects (economical and social) of the Covid-19 outbreak.
Many nations globally pledged to conduct researches in the field of bioscience and micro-biology and they are coming with new vaccines which are believed to counter Covid-19.
In this context, it is important to know how the human immune systems respond to the Covid-19 vaccines. This essay helps the learners and audience to comprehend Covid-19 vaccines and their effect on the human immune systems. The essay also discusses how the human immune system responds to the Covid-19 vaccine.
Immune responses to viral infections
Whenever the human body is attacked by viruses then the body has a mechanism to fight the viruses. This mechanism is referred to as the immune system of the body.
If the virus is weak and the immune system of a person is strong then the person recovers from the adverse effect of the virus after some time with little or no medication.
On the contrary, if the virus is strong then the immune system tries hard but ultimately yields to the adverse effects of the virus. Because of which the person suffering from the associated medical condition requires hospitalization, treatment, rest.
This section of the essay discusses the immune responses to various viral infections including the Coronavirus.
Types of Immunity
In this context, one needs to know that there are 2 types of immunity and they are as follows:-
This type of immunity results in immediate responses to infections including viral attacks.
This immunity offers specific responses to infections, viral attacks. Besides, this immunity is known to provide cellular responses as also the antibody responses.
In this context, it is relevant to add that the innate immunity responses are fast and immediate whereas the cellular and antibody responses commence after 6 days to 8 days.
What is the immune response of Covid-19 vaccines to immunized persons?
Whenever the adaptive immune system cells confront the same virus say for instance the Coronavirus repeatedly then the response is prompt. The immune system can get rid of the infections before the associated virus can cause the disease. Vaccines have an immune memory to safeguard individuals from infections. The immune memory occurs if the person has already suffered from an infection. An immune response can also occur if the person has been vaccinated properly.
Immune response because of Covid-19 disease is induced because of vaccines
Whenever a person is vaccinated to stay protected from the Covid-19 ailment then it is important to understand that the vaccine delivers an immunogen sagely into the blood. The objective of the immunogen in the blood is to train the immune system so that it can identify the pathogen associated with the disease and in this scenario it is the Coronavirus. Pathogen recognition by the immune system happens with the activation of the CD4 and the T-cells (helper). With the activation of the CD4 and the T-cells (helper), the B-cells receive a stimulus to create antibodies that are specific to the virus. Thereafter the CD8 and the cytotoxic T-cells receive a stimulus to identify and destroy cells that are damaged by the Coronavirus.
Immunogens that are utilized in the Covid-19 vaccines
The Covid-19 vaccines like other types of vaccines release immunogens. The immunogens are specific types of antigens that are known to provide an immune response. The selection of the immunogens that are used for vaccination affects the nature of the immune response that is generated. Besides, other factors are considered while developing immunogens and these factors include development time, safety, costs, production time, and access to vaccines.
Types of immunogens
In this context the immunogens that are utilized in Covid-19 vaccines are as follows:-
- Inactivated viruses
- RNA vaccines
- Viral vector
- Viral subunits
Know more about the immunogens from relevant websites that are available on the web.
The scientific community had to take into consideration the sensitiveness of the situation (pandemic created because of Covid-19) and work to develop an effective vaccine for the disease. As of the day, there are several Covid-19 vaccines. Most of these vaccines are designed so that they can be administered in two doses. Globally Covid-19 vaccines are being allocated in a manner to protect health systems and also to reduce mortality.
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