Why You Still Need The Vaccine Even If You Had Covid Before

Medically Reviewed by Dr. K on 22 October 2021

Why You Still Need The Vaccine Even If You Had Covid Before

Covid-19, officially known as SARS-CoV2, has infected a running total of over 116 million cases worldwide, resulting in over 2.5 million deaths. Currently, the US is the country most affected by this pandemic.

Vaccines are being developed by scientists all over the world to help reverse the tide of this life-threatening disease.

The FDA granted an emergency use authorization (EUA) for the first of these vaccines, which was produced by Pfizer and BioNTech.

The EUA allows the Pfizer-BioNTech COVID-19 vaccine to be distributed. This vaccine was created to protect people aged 16 and up against COVID-19.

Getting two doses of the vaccine will significantly lower your chances of contracting COVID-19.

And if you’ve already been infected with COVID-19, having the vaccine will help avoid reinfection and reduce the chances of getting unwell.

Natural immunity may wane

When an individual contracts COVID-19, their immune system learns to recognise the virus and produces antibodies to combat it.

If the individual recovers from the disease, they can develop immunity to the virus for a period of time.

However, it is unclear how long the immunity will last. There have been cases of reinfection with covid-19 reported.


Vaccination may raise immunity

Getting vaccinated against COVID-19 can help to boost immunity.

Pfizer and BioNTech are currently conducting a clinical trial to test their vaccine in people who have and have not previously been exposed to the virus.

According to their study, the vaccine is 95 percent successful in preventing COVID-19.

According to their results, it may help prevent reinfection in people who have already been exposed to the virus, as well as reduce the risk of infection in people who have never been exposed to the virus.

According to data from the Pfizer-BioNTech vaccine's phase 2/3 trial, the vaccine is safe and possibly successful in people who have had prior SARS-CoV-2 infection.

The vaccine should be provided to anyone, regardless of whether they have already had a symptomatic or asymptomatic infection.

People with a proven history of COVID-19 can wait up to nearly 90 days after their previous infection to get vaccinated, according to the Centers for Disease Control and Prevention (CDC).

Though further research is required, evidence indicates that reinfection with this virus is uncommon within 90 days of infection.

If anyone is still experiencing COVID-19 symptoms, the CDC advises that they wait to get vaccinated until they have recovered and fulfilled the requirements for being released from isolation.

Weighing the benefits and risks

There is a chance that the Pfizer-BioNTech COVID-19 vaccine could cause side effects.

However, current literature indicates that the side effects are usually minor and short-lived.

The risk-benefit analysis method is commonly used to answer these questions in healthcare.

In this situation, the likelihood of an adverse reaction to the vaccine is minimal, and the advantage of recognising that you have COVID immunity that can be expanded or refreshed is substantial.

It is also recommended that people get the vaccine, even though they have already been exposed to COVID and have become infected.

Pressure around the injection site is the most widely identified side effect associated with the Pfizer-BioNTech COVID-19 vaccine.

Other side effects of the vaccine include nausea, headaches, and muscle aches, which usually go away after a day or two.

The chance of serious side effects from the vaccine appears to be very low. However, some individuals may be more susceptible to negative responses than others.

The FDA, for example, advises against receiving the vaccine if you have a history of serious allergic reactions to any of the ingredients in it.

To learn more about the possible benefits and dangers of getting vaccinated against COVID-19, speak with your doctor.

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