Why WHO skipped two letters of the Greek alphabet when naming the latest coronavirus variant
So after a new variant with the unwieldy scientific name of B.1.1.529 was discovered last week in South Africa, observers might have expected WHO to name it after the next Greek letter on the list: Nu.
“Nu is too easily confounded with ‘new’ and Xi was not used because it is a common surname,” the organization explained in an emailed statement to CNN.
“And WHO best practices for naming new diseases suggest ‘avoiding causing offense to any cultural, social, national, regional, professional or ethnic groups.’ “
Though pronounced differently, the Greek letter Xi bears a similarity to the Chinese surname Xi — as in Chinese leader Xi Jinping — fueling speculation that may have played a role in the WHO’s skipping the name.
So that’s how this latest coronavirus variant became named Omicron.
And if even newer variants emerge, there are nine more letters in the Greek alphabet. The next one is Pi.
![]()

