EU health authorities have recommended a “mix-and-match” approach to Covid-19 vaccination, saying that using different jabs during the initial and booster inoculation phases produces “good levels of antibodies.”
In a joint statement, the European Medicines Agency (EMA) and the European Centre for Disease Prevention and Control (ECDC) said that “the combination of viral vector vaccines and mRNA vaccines produces good levels of antibodies against the COVID-19 virus (SARS-CoV-2) and a higher T-cell response than using the same vaccine (homologous vaccination) whether in a primary or booster regimen.”
Using different Covid shots as booster jabs – described by the agencies as a “heterologousvaccination” approach – could be utilized as another means of improving immunity, and might be particularly helpful in providing countries with more flexibility in their inoculation rollouts.
Booster doses can be safely administered as early as three months from the second dose of a vaccine, though ideally this period should be extended to six months, the EMA and ECDC added.
The new recommendations mean EU countries can push on with their own mixed vaccination campaigns without waiting for formal approval from EU authorities. The EMA/ECDC update comes as the new Omicron variant is spreading rapidly across the region.
Research by the health agencies on this issue to date, however, covers only the four vaccines currently authorized by the EU Commission: AstraZeneca, Pfizer-BioNTech, Moderna, and the single-shot Johnson & Johnson.
The agencies also noted that the use of a viral vector vaccine (such as AstraZeneca) as a second shot or use of two different mRNA vaccines “is less well studied.” Additional research is also needed to understand how a heterologous approach affects immunosuppressed individuals and patients with serious chronic conditions.
While the US and UK have already adopted “mix-and-match” booster vaccination, the World Health Organization is still assessing the approach.
source: RT
Împotriva articolelor redacției noastre, persoanele nemulțumite pot formula Contestație în termen de 10 zile de la publicarea articolului, la judecătoria Orășenească nr. 1 München Bayern Deutschland, in conformitate cu Legea federală Germană. Considerăm că nu se pot formula acțiuni la instanțele din România deoarece nici o persoană care activează în trustul nostru nu poate fi extrasă de sub jurisdicția federală germană. Considerăm că redacția noastră nu răspunde în fața autorităților din România ci doar celor federale sau civile germane. deoarece legea română nu are efecte de extraneitate asupra redacției chiar dacă subiectul știrilor face obiectul unor evenimente sau persoane din România și sunt scrise în limba română. Limba română nu este izvor de extraneitate a legii.
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