Are COVID-19 vaccines necessary for someone who has recovered from a COVID-19 infection ?

Yes !

If someone has recovered from a COVID-19 infection, they would have some protection against getting another COVID-19 infection.

But, even if someone has recovered very well from a previous infection, vaccination is necessary because there is still a significant risk of getting COVID-19 infection again.

A recent study published in the medical journal Lancet reports that people who had a previous infection have about one-fifth risk of getting an infection again compared to those without a previous infection.

So while there is some protection against future infections, there is still a risk and hence it is prudent get the Vaccine when it is offered.

Reference:

Lancet. SARS-CoV-2 seropositivity and subsequent infection risk in healthy young adults: a prospective cohort study. DOI: https://doi.org/10.1016/S2213-2600(21)00158-2

Disclaimer: Please note- This blog is NOT medical advice. This blog is NOT a expert medical opinion on various topics. This blog is purely for information only and do check the the sources where cited. Please DO consult your own doctor to discuss concerns and options relevant to you. The views expressed in this blog represent the author’s views held at the time of drafting the blog and may change overtime, particularly when new evidence comes to light. The blog is not previewed, commissioned or otherwise endorsed by any organisation the author is associated with. The authors views are not in way intended to be a substitute for professional advice.

Some Good news for those who have recovered from a COVID-19 infection !

People who have recovered from a COVID-19 infection are expected to have some protection against another repeat infection by the COVID-19 Coronavirus.

The protection comes from patients own antibodies present in their blood.

Previously, there was a concern that this protection might not last very long and that the levels of protective antibody may drop off quickly and this in turn can lead to repeat infections.

Now a study from Oxford indicates that protection against repeat infection (re-infection) can last atleast 6 months.

This news indirectly might also be good news for COVID-19 vaccines .

Vaccines work by tricking the body into thinking that there is a virus infection and the body then produces the protective antibodies and cells.

Based on this study, one can logically hope that the protection by vaccines can be long lasting as well. Of course, nothing is certain and further vaccine data is awaited to confirm this.

References: (1) Lumley SF, O’Donnell D, Stoesser NE, et al., Oxford University Hospitals Staff Testing Group. Antibody status and incidence of SARS-CoV-2 infection in health care workers. N Engl J Med2020. doi:10.1056/NEJMoa2034545. pmid:33369366

(2) BMJ news: Covid-19: Antibodies protect against reinfection for at least six months, study finds. BMJ 2020; 371 doi: https://doi.org/10.1136/bmj.m4961 (Published 30 December 2020)
Cite this as: BMJ 2020;371:m4961

(3). BBC news: Covid reinfection: Man gets Covid twice and second hit ‘more severe’
By James Gallagher
Health and science correspondent

(4). Lancet Infectious diseases. Genomic evidence for reinfection with SARS-CoV-2: a case study. Richard L Tillett, PhD, Joel R Sevinsky, PhD, Paul D Hartley, PhD, Heather Kerwin, MPH, Natalie Crawford, MD, Andrew Gorzalski, PhD, et al. Published:October 12, 2020. DOI: https://doi.org/10.1016/S1473-3099(20)30764-7

Disclaimer: Please note- This blog is NOT medical advice. This blog is purely for information only and do check the the sources where cited. Please DO consult your own doctor to discuss concerns and options relevant to you.

The views expressed in this blog represent the author’s views held at the time of drafting the blog and may change overtime, particularly when new evidence comes to light. The blog is not necessarily endorsed by any organisation the author is associated with and views are not substitute for professional advice.