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The European Centre for Disease Prevention and Control, or ECDC, records its covid variants of concern, variants of interest, variants under monitoring, and de-escalated variants regularly. This update comes from their latest report dated 26th January 2023.
The data is created from new evidence on variants detected through epidemic intelligence, rules-based genomic variant screening, and more reliable scientific sources. The rules-based genomic screening is done using an open source algorithm, free for anyone to use.
Let’s take a look at the current situation.
Current Variants of Concern or VOC
Variants of Concern come with ‘clear evidence’ of a ‘significant impact’ on transmissibility, severity and/or immunity, which will be likely to affect the epidemiological situation in the EU and EEA. The data delivers something the science community calls ‘at least moderate confidence’.
At the moment the Variants of Concern are Omicron BA.2, BA.4 and BA.5, along with all of their sub-lineages.
The latest Variants of Interest or VOI
The evidence for the latest variants of interest comes from studies of their genomic properties, plus epidemiological evidence or in-vitro evidence showing an important impact on transmissibility, severity and/or immunity, and again affecting the situation in the EU/EEA. In their case, though, the evidence is either preliminary or a ‘major uncertainty’.
Current VOI include Omicron BA.2.75, BQ.1, XBB (z) and XBB.1.5, and all their sub-lineages.
Current Variants under Monitoring or VUM
Variants Under Monitoring either come with some weak evidence that they might have similar properties to a VOC, or the risk hasn’t been assessed by ECDC yet. To qualify, a variant must turn up in at least one outbreak, be found in an EU or EEA community, or been transmitted through a community outside the EU / EEA.
The Omicron variants BA.2.3.20, BF.7, XBC (x), BN.1 (y), CH.1.1 (z) and XAY all fall into this category at 26th January 2023.
De-escalated variants
There’s good news in the shape of de-listed variants that are either no longer circulating, have been around for a long time without affecting the overall epidemiological circumstances, or don’t have any ‘concerning properties’.
The ECDC’s de-escalated variants list currently includes Alpha B.1.1.7, Epsilon B.1.427/B.1.429, and a long list of minor outliers from the Eta, Theta, Kappa, Zeta, Lamda, Beta, Gamma, Delta, and Omicron variants.
We’ll keep you posted about new covid variants of concern
Because we’ve got our finger on the pulse, we’ll let you know if any dangerous new variants arise. Whatever they are, you can rest assured that because they’re viral our technology will kill them stone dead by damaging their RNA so badly they can’t reproduce. It feels great to know your building is a safe place for people to be, even if those people are vulnerable.