Declared in 2019, the coronavirus disease has wreaked havoc on all continents. To stem the threat, several vaccines have been developed. But, is the protection after the third dose of the vaccine really effective? We answer clearly in this article.
The third dose of the Covid-19 vaccine: the controversy surrounding the Omicron variant
Appeared during the year 2020, the variant Omicron of the coronavirus has the particularity of being immuno resistant and mutate very quickly. Because of these characteristics which are specific to him, he generated a controversy as for the strain of the third dose of vaccine against Covid-19.
If several laboratories have undertaken research to develop an updated vaccine, says “omacronized“, some studies later showed that this update was not essential. Indeed, the replacement of the Wuhan strain by the Spike protein in the manufacture of vaccin ARNm did not produce a better effect in patients. The results of the two vaccines were similar.
The third dose of the vaccine against Covid-19: guaranteed protection against Covid-19
Although controversial because of the decline in its effectiveness from the 4th month after receipt of the vaccine, the 3e dose of the Coronavirus vaccine is globally effective. Indeed, this injection confers a 99% protection in patients showing symptoms of an attack by the variant Delta. In the same framework, the third dose of the vaccine reduces hospitalizations and deaths linked to this variant by 98%.
For the variant Omicronthe protection decreases slightly and varies between 50 et 75 %. With a regressive hospitalization rate that can range from 80 to 95%, the death rate is reduced by 90%.
Ultimately, whether updated or historical, the third dose of the Covid-19 vaccine is very effective against severe forms of the disease.