The path of COVID-19 reminds me of a rollercoaster, now on  wave #8 , I think.  The current phase is 4 times lower in deaths/day than the peak that came in February of this year, and almost 6 times below the high that occurred in January of 2021.  In new cases/day, the highest number of new cases/day occurred on January of this year at around 4 million/day, with the highest in this current phase 3 times lower at around 1.35 million/day. From all reports, the COVID-19 Omicron subvariant BA.5 could be the  most infectious virus known to man .  Measles?  Maybe now in second place. The original Wuhan strain had a reproductive rate (known as Ro or R-naught value) of 3.3, meaning that each infected person would infect 3.3 others.  The 1918 Spanish Flu, for example, was only 2.0. Mumps =12 and measles = 18. The Delta variant?  5.1. The first Omicron, BA.1 = 9.5. Then came the stealth Omicron = 13.3. Now, both BA.4 and BA.5 = 18.6. Now comes Centaurus, BA.2.75.  Reproductive rate?  Still unkno

Here is something I did not expect, from  NBC News : A majority of people in the U.S have had Covid-19 at least once — likely more than 70% of the country , White House Covid-19 Response Coordinator Ashish Jha said on Thursday, citing data from the Centers for Disease Control and Prevention. Many have been infected multiple times.   Let me do some math.  So far, the U.S. has had a little more than  92 million COVID-19 cases.   Our population is 335 million, so I calculated 28%, which is far lower than the 70% cited by Dr. Jha. But the  World Health Organization  reported in April that up to 65% of Africans have been infected by SARS-CoV-2.  If this is true, the continent had 97 times more cases than reported!!! Further, the global average should be 16 times higher! There is no mention of how asymptomaticity factored into the above. So if you multiply the actual covid cases by 16, that would mean that the average person in the USA actually was infected more than  four times each .   Tha