What can the corona vaccines do against the Delta variant? This question moves the world. The answer is now provided by a team from Singapore. Karl Lauterbach is delighted.
Munich – thumbs up from Karl Lauterbach! The SPD health expert has examined a new study on the effectiveness of certain vaccines on the new delta variant of SARS-CoV-2 and found it to be good. The work from Singapore also supports the thesis that vaccinations after infections with the coronavirus protect against serious Covid-19 diseases. However, there are limitations.
Between April 1 and June 14, the researchers examined a total of 218 adults who were infected with the mutation, which was first discovered in India and then ended up in a hospital in Singapore. The average age of the subjects was 56 years.
Study on vaccines against Delta: Only a third of the subjects were already immunized
84 of them had been given an mRNA vaccine – including Biontech and Moderna, but not Astrazeneca and Johnson & Johnson. Of these, 71 were already immunized. 130 people examined were not vaccinated, the remaining four outside of Singapore with a non-mRNA vaccine.
During the comparison, the scientists noticed that the disease progression was more often – 28.2 percent – asymptomatic in immunized patients or they had fewer symptoms. Pneumonia was more common in those who were not pecked, additional oxygen had to be administered more frequently in this group, and admission to the intensive care unit was also more frequent.
Vaccine Study Against Delta: Viral Load Decreases Faster With Immunization
The age of the immunized patients was significantly higher, which was probably related to the vaccination prioritization in Singapore. Nevertheless, their risk was significantly lower that a severe Covid 19 disease would require additional oxygen supply.
The most important result of the study, however, was this: the threshold values of the virus were similar in both groups, but the viral load decreased faster in the vaccinated. Reason: The antibodies react quickly to the infection.
Accordingly, mRNA vaccines are highly effective in preventing symptomatic and severe Covid-19 diseases with the Delta variant. The researchers emphasize: “Vaccination remains a key strategy in combating the pandemic.”
Video: The Delta variant is as contagious as chickenpox
Study on vaccines against Delta: Lauterbach lets joy run free on Twitter
Lauterbach is also jubilant on Twitter with a view to the “important study from Singapore”: “Therefore, the virus will not spread among vaccinated people.” For their part, the Asian researchers said their findings confirm data from Great Britain. There is hope that the disease will progress more easily if the vaccination program is successful.
In addition, the scientists suggest shortening the quarantine period for vaccinated people, since the infectiousness is shorter. However, they do not want to see their results over-interpreted.
Study on vaccines against Delta: researchers narrow their own results
Therefore, they point out that no infected vaccinated people were examined who did not develop a serious Covid-19 disease. So it cannot be said with certainty how the vaccines will react to asymptomatic infections.
In addition, it was not possible to investigate to what extent the vaccines could curb secondary transmissions – i.e. the indirect transmission through, for example, touching the same door handle. And above all, the study applies only to mRNA vaccines. So there is still some work left for researchers in other parts of the world. (mg)