COVID-19 Vaccine

COVID-19 Vaccine

Doctor holding syringe and medication



To avert Covid-19, vaccines are conceivably the foremost expectation for grinding the pandemic to a halt.  Issuance of permission will be needed from   FDA to set the ball rolling on the immediate application of the Covid-19 vaccines, it is certain that feasible questions will be asked. Hence, this article will shed light on the advantage of the Covid-19 vaccines, the functionality, the probable after-effects, and the significance of continued adherence to the Covid-19 prevention protocols.


There is no doubt that it is expected that vaccination will initiate immunity more assuredly, without the hazards of acute sickness or death. It is common knowledge now that an unaffected Covid-19 infection and a vaccination are perceived pathways to safeguard people from getting infected with the virus in the future. However, it is quite crucial to know the differences, which is better to build immunity against the virus, and the merits and demerits of each pathway.


However, medical professionals believe that vaccination is secure and a better pathway to follow for safeguarding the populace against the infection as opposed to the introduction of the unaffected Covid-19 infection.


Workings of Covid-19 in the body and how the vaccines avert it

COVID-19 attacks the body by linking to and making its entrance into cells with the use of a protein on its external surface known as the spike protein.  Nevertheless, the primary objective of vaccination is to train generic immune cells (T cells and B cells) to recognize the spike protein, for instant identification and aversion of infection. It is this same sort of resistant training that also occurs in a natural infection.


Vaccines imitate specific details in natural infection by averting the exposure to a disease-causing virus that can clone in the body. Systems that contrast are employed in Covid-19 vaccines so the populace is exposed to only the spike protein. For instance, regarding the Moderna vaccines and Pfizer mRNA vaccines, these vaccines give cells directives to produce the spike protein in the body. In essence, the work of the vaccine is to prime the body’s immune system to acknowledge the virus without any ailment.


In what way is Covid-19 immunity accessed from a natural infection pathway?

The primary aim of a virus is to replicate itself to put in disorder the body’s immune system.  The viral microorganism is introduced into the body and the body immediately responds by resuscitating a fraction of your fortification known as the immune system, which understands the workings of pathogens. 

This introduction alerts agent proteins known as cytokines; it brings about immune response in dual forms. First, the infection assists in setting in motion the immune system, in other words, the immune cells go on an onslaught on the infected cells and the virus itself. Even so, excessive infection can cause harm to tissues.  However, in the case of anti-viral, unique cytokines known as anti-viral agents impede the reproduction of viruses.


Surgical mask over minimalist purple background


A safer choice: infection or COVID-19 vaccination? 

Regrettably, in the case of introducing the pathogen, SARS-CoV-2, into the body, in some cases, it exhibits a form of impediment of the body’s anti-viral response which could lead to retardation of the body’s erythrogenic reaction which can lead to excessive harm to the tissues in the body like the lung tissues, without getting rid of the virus. 


It is pertinent to note that the part of the virus that is counter-productive in the immune system is not in vaccines thereby making vaccines a preferred and safer choice. Besides, acute after-effects from clinical investigations for Covid-19 are few and far between, and those that materialized were intermittent acute sensitive responses that do not need therapeutics.  Hence, in the case of vaccines, clinical investigations check varied dosage then finally approve the most effective one.


Have any Covid-19 vaccines been approved and how do they function?

Presently, various Covid-19 vaccines are under clinical investigation.  In-depth research has to be done on the Covid-19 vaccine investigation before approval for use.  Reason being that  the procedure for FDA's vaccine approval could take a long time coupled with the need for the vaccine,  the FDA will urgently authorize the use of Covid-19 vaccines based on less information than is usually called for. The information must indicate that the vaccines are secure and functional before the FDA can authorize emergency use.


People wearing a protective mask standing on the street


Moderna vaccine

The Moderna Covid-19 vaccine has been ratified for top proirity use by the FDA.  Information has revealed that the vaccine has a potency rate of 94.1%. The vaccine is for individuals from the age of 18 upwards; the vaccine comprises of two injections taken at 4 weeks interval.   The Moderna and Pfizer/BioNTech Covid-19 vaccines use messenger RNA (mRNA).


The viruses have a spike-like formation on the surface known as an S protein; the Covid-19 mRNA vaccines direct cells to create a non-toxic bit of an S protein. Following vaccination, cells commence making the bits of protein and arranging them on the surface of cells. The body’s immune system will immediately identify the wrong placement of the protein and commence constructing an immune reaction and producing antigens.


Pfizer/BioNTech vaccine

Pfizer/BioNTech  COVID-19 vaccine has also been given urgent approval by FDA. Information has also revealed that the vaccine commences work immediately after the first dosage and it has been proven to have a potency rate of 95% a week following the second shot. What this translates to is that almost 95% of individuals that get the vaccine are safeguarded from becoming critically sick with the virus. This vaccine is for individuals from the age of 16 upwards; it comprises of two injections given at 3 weeks interval.


What are the merits of getting a COVID-19 vaccine?

It is not possible to know what effect Covid-19 will have on an individual. If an individual gets infected with the Covid-19 virus, the possibility of transmitting it to others is very high if the individual does not go into immediate isolation and seeking immediate medical intervention.  Covid-19 is capable of causing acute medical impediments that could cause loss of life.


The covid-19 vaccine will assist in safeguarding everyone by making antigen reactions in the body without having to get ill with the Covid-19 virus. The efficacy of the Covid-19 vaccine can present in two ways; it could safeguard from contracting the Covid-19 virus; it could prevent the individual from getting critically sick or from getting severe health impediments. Vaccination will also safeguard everyone around from the Covid-19 virus most especially individuals with acute internal ailments.


What are the probable after-effects of a COVID-19 vaccine?


Covid-19 vaccine can have light after-effects following the application of the first or second dose; some of which are: Headache, Fever, Joint pain, muscle pain, fatigue, chills, redness, or swelling where the shot was administered.


Following the administration of the Covid-19 vaccine, a routine  observation is done  for fifteen minutes to check for any instant response.   The after-effects show up within three days following the vaccination and routinely lasts for just a day or two.


Conclusively, specialists are still researching the level of protection provided by the Covid-19 vaccine and the immunity duration.

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