Explainer: Understanding the labeling of the many COVID varients

XBB.1.5, BA.2.86, JN.1: How to understand the Covid-19 alphabet soup | CNN The virus that causes Covid-19 has more letters to describe its many derivatives than a bowl of alphabet soup. Jen Christensen CNN

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A virus like this one has a lot of different names because it is changing constantly, and scientists need a common language to talk about a specific version that they’re seeing in a particular community or that they’re working with to develop treatments, vaccines and tests.

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