Israeli Study: Antibodies Perform Best After COVID Infection, Not Vaccine


Over time, the number of SARS-CoV-2 antibodies falls in both previously infected and vaccinated people, but the performance of antibodies improves only after previous infection and not vaccination.

Join our WhatsApp group

Subscribe to our Daily Roundup Email

This groundbreaking finding, led by Dr. Carmit Cohen of Israel’s Sheba Medical Center, will be presented at the European Congress of Clinical Microbiology and Infectious Diseases in April.

Cohen and her colleagues analyzed antibody-induced immune response in 130 recovered individuals for up to a year and compared it to 402 matched individuals who were double-vaccinated with the Pfizer vaccine but never had COVID-19.

The researchers found that the number of antibodies present a month after vaccination was higher than in patients who had recovered from COVID-19. However, these numbers declined more steeply in the vaccinated group.

While the avidity (antibody performance quality) index was higher in vaccinated individuals than in recovered patients initially, avidity did not significantly change over time in vaccinated individuals but increased gradually in recovered patients.

This could explain why double-vaccinated individuals who never contracted COVID-19 are more likely to experience infection after six months.

The study also found that, contrary to expectations, antibodies of recovered patients with a body-mass index of 30 or higher (in the obese range) were higher at all time points when compared with those with a BMI under 30 (overweight to normal weight range). The obese people who had been previously infected were therefore better protected against future infection.

Of all recovered patients, 42 (36%) experienced long COVID, including mental health (5%), neurological (9%), cardiovascular (5%) and respiratory (31%) symptoms.

The authors conclude: “While the number of antibodies decreases with time in both COVID-19 recovered patients and vaccinated individuals, the quality of antibodies increases following infection but not after vaccination. These results provide specific characteristics of the immune response that may explain the differential protection against COVID-19 in previously infected and vaccinated individuals.”

This article was first published by Israel21c

Listen to the VINnews podcast on:

iTunes | Spotify | Google Podcasts | Stitcher | Podbean | Amazon

Follow VINnews for Breaking News Updates

Connect with VINnews

Join our WhatsApp group

Most Voted
Newest Oldest
Inline Feedbacks
View all comments
2 years ago

but, they will never be allowed to publish the antibody performance of “unvaccinated and covid recovered” vs “covid-recovered then vaccinated” vs “vaccinated then covid recovered”, because they will never report something that pushes against getting the vaccine

Let’s go Brandon.
Let’s go Brandon.
2 years ago

Obviously. I been saying this for years.
All the experts are lairs. Fauci and the rest have books are their hands.
They don’t follow any Science it’s all a con

2 years ago

Considering the only way to get the more successful antibodies includes significant risks of Covid symptoms, and post infection symptoms, I will keep my mask on,. The absence of data for those who got booster shots (3 and 4), makes this study irrelevant. Those who are post Covid arent superheroes. They are luckier than the millions who died, they are luckier than those who are severely affected by covid complications. But they are not protected. Many people got sick twice, three times….The best way to protect oneself is of course isolation, then mask and social distancing and hygiene.