New infections in the US are100% Omicron strains and Delta strains disappear

Yesterday CNN.co.jp reported the following:

米の新規感染の１００％がオミクロン株、デルタ株消滅

2022.02.10 Thu posted at 16:30 JST

 （ＣＮＮ） 米疾病対策センター（ＣＤＣ）は８日、米国内の新型コロナウイルスの感染状況に触れ、オミクロン変異株によるものが推定で１００％に達したと報告した。

 今年１月３０日から今月５日にかけ全米規模でゲノム解析したデータに基づく。

 ８日に発表した最新の推定データによると、オミクロン変異株の派生株である「ＢＡ．２」が新規感染のうち３．６％を占めた。前週比で１．２％増となった。

 地域別に見た場合、この派生株の拡散は西部の諸州でいくぶん進んでおり、新規感染の５％に近い水準となっている。

 デルタ変異株は米国内にもはや存在していないとも推測し、最近の週の大半で感染例が報告されなかったとした。

Translation

  (CNN) The US Centers for Disease Control and Prevention (CDC) reported on the 8th that the infection status of the new coronavirus in the United States due to the Omicron mutant strain had reached 100%.

This was based on a national scale on genome-analyzed data from January 30th to 5th this year.

According to the latest estimated data released on the 8th, "BA.2", which was a derivative of the Omicron mutant, accounted for 3.6% of the new infections. It increased by 1.2% from the previous week.

By region, the spread of this derivative was somewhat more advanced in the western states, near 5% of all new infections.

It was also speculated that the Delta variant no longer existed in the United States, and that no cases of delta infection were reported during most of the last week.

So, in the United States now all the coronavirus infection are due to the Omicron mutant strain. Does this mean the death rate due to Covid virus will drop substantially from now on in the US?