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Things to understand about COVID-19 vaccines


How do COVID vaccines work?

The vaccines use messenger RNA or mRNA. Coronaviruses have a spike-like structure on their outer surface called S protein. On inoculation, the Covid 19 mRNA vaccine gives body cells instructions on how to make a harmless piece of S protein. The cells then start constructing the protein pieces and display them on their surface. The system recognizes that the protein doesn't belong there and begins building an immune response of antibodies as a countermeasure.


The world geared up in 2020 to meet the pandemic challenge in a collaborated way and has reached some success of developing effective Covid vaccines. In this short span of time from vaccine development perspective, more than a dozen vaccines have been authorized for use

around the globe; and many more are in various stages of development.


Why should we get vaccinated for COVID-19?

Knowing that there is no proven cure for Covid as on date, a vaccine can:

  • Prevent an individual from getting Covid 19 or becoming seriously ill from Covid19.

  • Prevent one from spreading the Covid 19 virus to others in the community.

  • When an increased number of people in the community are vaccinated then it becomes harder for the disease to spread. A protracted effort of everyone can contribute to herd immunity.

  • It will prevent the Covid 19 virus from replicating. If the process is not stopped then the virus can keep mutating and become more lethal and resistant to medicines.

Side effects of COVID-19 vaccine

A Covid-19 vaccine can cause mild side effects after the first or second dose, which may include:

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