“The Pfizer or AstraZeneca vaccine is of little or no effective against the sera delta of individuals receiving a single dose,” said Oliver Schwartz, co-director of the study, in a new news release.
In a new study, researchers from the Institute Pastor, in collaboration with European hospital Georges Pompidou AB-HP, Orleans’ CHR and Strasbourg’s CHU, studied the susceptibility to antibodies to the delta variant, also known as beetroot (in French, English (alpha) and Southpaw).
The aim of this study was to neutralize this new variant and to determine the potential of therapeutic antibodies and those previously developed or vaccinated against SARS-CoV-2 disease.
Takeaway here: “By analyzing the blood of people infected with SARS-CoV-2 in the previous 12 months, the researchers showed that four times as many antibodies are needed to neutralize the variant. The Delta Pfizer vaccine or the estrogen vaccine vaccine is available with two doses of the vaccinated vaccine: The antibodies in their sera are effective in neutralizing the delta variant, slightly less effective than the alpha variant, and on the other hand, the serum of vaccinated individuals with a single dose (Pfizer or Astrogenega) is more or less inactive or inactivated against the delta or beta variants. The delta variant has slightly higher resistance “.
As a reminder, the delta variant accounts for more than 30% of current cases in France.