Cherry picking of South African data to say #Omicron is mild ignores a few facts. 1st, SA population is very young, mean age 27 years, and infection milder on the young. 2nd SA experienced a substantial #Beta wave & Beta shares some mutations with Omicron. This together w 1/2
high past infection rates may have provided unique immune memory not seen in countries that did not experience a significant Beta wave. Few other countries had a Beta wave. #Bangladesh was one. Interesting to see impact of omicron there.
Here u can see Australia is more like the UK. Bangladesh, which had a Beta wave later than South Africa, has not yet had a steep rise. Both SA and Bangladesh had significant Beta waves. This may account for some of the differences. 
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