The CDC announced data regarding the efficacy of the major vaccines against infections and infectiousness exceeds 90%.

We have not seen the predicted 4th wave in March, what we have seen is a flattening of what had been a steep decline in the number of cases.

Over the last week, the overall rate of the United States is only down by about 5%, but half of the states are actually ticking upward again.

It now appears that the pace of vaccination and the movement towards herd immunity has blunted the effect of more virulent COVID-19 variants.

The most important news this week is the approval and release of the Johnson & Johnson single-dose vaccine for COVID-19.

Real-world studies looking at vaccine effectiveness have confirmed Pfizer’s study findings of 95% efficacy after two doses.

In the United States, individual case counts have seen their lowest number over the previous two days since the middle of October 4 months ago.

In the United States, the overall rate of new COVID-19 infections decreased by nearly 1/4 in the last week.

In the US, the seven-day average of cases is down by over 46% from the peak during the second week of January.

In the US, cases are down about 20% from their post-New Year peak and similar downward trends are seen in Asia and Australia.