Diminishing protective effect of vaccination and skyrocketing infection numbers are showing their consequences

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Of the 72,794 symptomatic laboratory-confirmed coronavirus cases that occurred between Oct. 11 and Nov. 7, 41 percent of those affected – 29,818 people – were fully vaccinated. This was announced yesterday by the Agency for Health and Food Safety (AGES). The number of vaccination breakthroughs was thus recently significantly higher than the total of about 17 percent since February.

A vaccination breakthrough is defined by the occurrence of symptoms despite complete vaccination, because the vaccination also often protects against infection, but is approved to prevent disease. Even very mild symptoms are sufficient to count as a vaccine breakthrough. About 40 percent of all recorded cases of infection have been asymptomatic during the period.

Highest proportion among the elderly
There are several reasons for the increase in vaccination breakthroughs, one of which is the diminishing protective effect of the vaccination after a few months. This is also evident in the detailed figures: In recent weeks, the proportion of vaccination breakthroughs was highest among those over 60 years of age, at around 70 percent. This is also the group that was vaccinated in the first months of the year.

Of 21,000 cases, about 13,000 were symptomatic, of which 9,000 were again vaccinated. The age group is about 84 percent vaccinated. As the proportion of vaccinated individuals in the population increases, so does the likelihood that vaccinated individuals will be among those who become infected or ill with SARS-CoV2, AGES experts emphasize. In the very broad group of 18- to 59-year-olds, the proportion of vaccine breakthroughs was about 38 percent, and among 12- to 17-year-olds it was about eight percent.

Vaccination effect shows up in incidences and hospital occupancy rates
The number of vaccination breakthroughs has only been increasing for a few weeks, which is not only due to the decreasing protective effect of the vaccination, but also to the strongly increasing number of cases overall. Calculated over the entire period since the start of the vaccination, there are only 0.89 percent of vaccine breakthroughs among those who have been fully vaccinated.

However, the effect of vaccination is most evident in the sharply different incidence rates among the vaccinated and the unvaccinated: Among the incompletely vaccinated, the 7-day incidence is well above 1,000 in all age groups; among the vaccinated, it is between 240 and 255. The hospital figures are also clear: 13.5 percent of Vienna Covid ICU patients are doubly vaccinated, while 86.5 percent are not twice vaccinated. In normal wards, 39 percent are doubly vaccinated Covid 19 patients and 61 percent are not doubly vaccinated.

— source: orf.at/ages.at/picture:pixabay.com

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