(forgive me if i may have said something here that may seem incorrect, this is just my contribution of sharing some info.)
The WHO has divided the virus strains into three categories, VOC, VOI and VUM.
There are now five Official VOCs.
**Variants of Concern** (VOC)
1) **Alpha** (the original mutation, it was 40 to 80% more transmissible than the original virus)
2) **beta** (detected in May 2020 in S.Africa)
3) **gamma**.(deadlier still, detected in Brazil in November 2020.
4) **delta**.(Red Alert, first detected in India. Designated in May 2021, it was until recently the most concerning strain of the virus. It has up to 17 mutations, including sub-lineages, and is considered 97% more transmissible And now,
5) **Omicron** The New fear
The variant just designated, called Omicron, or B.1.1.529, has a whopping 32 mutations of the spike protein, raising fears that it will be resistant to existing vaccines. Fewer than 100 cases have been detected so far, but it has reportedly already reached Europe from its initial nexus in southern Africa.
**Current Variants of Interest** (VOIs): Lambda and Mu.
Then there is a list of a concerning number of **Variants Under Monitoring** (VUM)
WHO says The evidence and impact that these variants may have is currently unclear, and so, requiring enhanced monitoring and repeat assessment pending new evidence.
But remarkably,
This is different from the US Centers for Disease Control and Prevention (CDC) categorization, which lists only Delta as a VOC, and the rest as VUMs.
This is concerning, and so i would like to ask the WHO this question (and vice versa) why is the CDC hesitant and delayed in agreeing with the categorization of the WHO? what and who should we trust in this pandemic the WHO or CDC?
But it's been reported that, The Biden administration will follow advice from Dr. Anthony Fauci and the Centers for Disease Control and Prevention (CDC) and restrict travel from several African nations, top infectious disease expert, Dr. Anthony Fauci, said the omicron strain could be a "red flag," but more research needs to be done — and fast?
So it appears that the US is very concerned but they don't want to be seen as that they are following the advice of the WHO, And then it's no wonder that the World feels like that it's been stuck in a vicious circle for this long.