A study published in the United Kingdom on December 2 showed that scholars compared the effects of seven new coronavirus pneumonia (COVID-19) vaccines developed by different pharmaceutical companies as the third shot and found that no matter which brand of booster they were vaccinated, they were all Can produce enough protection.
Scholars from the United States (Moderna), Johnson & Johnson (Johnson & Johnson), Novavax (Novavax), AstraZeneca (AstraZeneca), Germany "CureVac" (CureVac) and France (Valneva) The vaccine, as well as the booster effect of the vaccine jointly developed by Pfizer and BioNTech, found that most of them can induce a strong immune response.
"Healed" and Varneva have not received emergency authorization from any country or organization.
"Cure" is also an mRNA vaccine, while Varneva is an inactivated vaccine. The principle is the same as that of Sinovac and Sinopharm vaccines.
New crown pneumonia: The picture shows a German policewoman receiving a booster vaccine on December 2, 2021.
(AP)
The British medical journal "Lancet" (The Lancet) published this research report on the 2nd.
Studies have shown that most vaccines can provide at least 90% protection after booster vaccination. The addition of Modena and Pfizer mRNA vaccines induces much higher antibodies in the body than other vaccines. AstraZeneca, The antibodies induced by Novavax, Johnson & Johnson, and "Cure" only increased slightly.
Saul Faust, a co-author of the study and an infectious disease scientist at the University of Southampton, said: “Among the many vaccines and many different combinations we have tested, the third dose of vaccine can be used. Play the effect."
Foster pointed out: "If your country or region has only one of the vaccines that we have proven to be used for additional vaccines, then use it as a booster. It is safe to do so."
British study: The probability of fully vaccinated people being infected and spreading to the same person can still reach 38% of new coronary pneumonia. A British study found that vaccinated people are still prone to spreading Delta virus at home. Concurrently effective new crown vaccine | Which is better for the groove-needle combination?
Thailand study: Xiankexing or AZ and then inoculation with Pfizer
Studies have also found that boosters can significantly induce T cell responses, are equally effective against variant virus strains Beta and Delta, and can play a key role in long-term protection.
