Spain’s health ministry has admitted that some vaccines are more effective than others at preventing infection.
Some vaccines have been more effective in protecting against the coronavirus, reveals a recently released report by the Spanish Ministry of Health on the effectiveness of vaccination against COVID-19 in Spain. The report details the differences observed in the effectiveness of the different vaccines used to immunize the population.
In Spain, four vaccines have been used: Pfizer, Moderna, AstraZeneca and Janssen.
The document from the Ministry of Health analyzes observations made during the fifth wave of the pandemic, which took place in July and August 2021, when the four vaccines had already been administered to different groups of the population. Over the two-month period, the cumulative incidence was “highest in those unvaccinated, followed by those vaccinated with Janssen and those vaccinated with AstraZeneca”.
According to the ministry, “in these groups the incidence has increased since November, except in those vaccinated with Janssen, in whom the increase has stopped, possibly due to the administration of a booster. with the mRNA vaccine ”.
The Ministry of Health, led by Carolina Darias, concludes that the Janssen and AstraZeneca vaccines, when given alone, are the ones that have prevented the fewest infections, compared to the Pfizer and Moderna vaccines or combination vaccines.
“People vaccinated with Pfizer, Moderna, and the combination of AstraZeneca and the mRNA vaccine showed the lowest incidence throughout the period,” the ministry said.
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