The delta variant now dominates the infection process in Austria.
The proportion of the delta variant in the SARS-CoV-2 infection rate in Austria, which has dominated for three weeks, has recently increased further. In the past calendar week (week 27), 317 laboratory-confirmed cases of the mutation B.1.617.2, which initially occurred in India, were detected, at the same time there were 70 cases of the B.1.1.7 (alpha) variant. This emerges from the current report on the SARS-CoV-2 variants by the Agency for Health and Food Safety (AGES).
The first delta case was detected in this country in week 15, at that time the alpha variant apparently originating from Great Britain still dominated, alongside a few cases of B.1.351 (beta) and P.1 (gamma). Beta and gamma were rarely detected in Austria recently, but the proportion of Delta among the worrisome variants (“Variants of Concern”) has risen continuously. Delta is considered particularly contagious.
Most of the cases in Vienna
The most total of delta cases from the random monitoring system were so far with 873 in Vienna, followed by Lower Austria with 187 and Tyrol with 108 records. In Upper Austria, 78 samples tested positive for the so-called Indian variant, in Vorarlberg and Styria 61 each. In Salzburg there were 46 Delta records, in Burgenland 37 and in Carinthia seven.
For variant monitoring, a laboratory was selected in each federal state and named the so-called sentinel laboratory. Each of these laboratories sends the first ten positive SARS-CoV-2 reference samples to AGES every week. In addition, a tenth laboratory was commissioned to send in only positive samples from visitors to Vienna Airport. The samples are therefore randomly selected samples that tested positive for SARS-CoV-2. Since the samples come from all federal states, an overview of the virus variants circulating in Austria is possible.