Honest question, not intended to be a leading question....
Influenza is caused by a virus. We have grown the virus for many years and killed it to be included in flu vaccines. Why can we not do the same for the China variant of the corona virus? Is there a structural or chemical or other reason why we are unable to replicate our previous "successes" and must look for a new approach? Not looking here for the routine answers - big pharma profits, Bill Gates conspiracy, NWO control, etc. Looking for a legitimate bio/med explanation.
We never killed the flu. That's why there is "flu season," because every year it mutates and vaccines have to be adjusted to deal with the mutations.
^ This is the correct answer. There 5 Covid-19 'variants' being tracked right now in the US..
B.1.1.7: This variant was first identified in the US in December 2020. It was initially detected in the UK.
B.1.351: This variant was first identified in the US at the end of January 2021. It was initially detected in South Africa in December 2020.
P.1: This variant was first detected in the US in January 2021. P.1 was initially identified in travelers from Brazil, who were tested during routine screening at an airport in Japan, in early January.
B.1.427 and B.1.429: These two variants were first identified in California in February 2021 and were classified as VOCs in March 2021.
Sauce: https://www.cdc.gov/coronavirus/2019-ncov/transmission/variant.html