Epidemiologist Dr. Michael Osterholm believes the U.S. is seeing a "fourth wave" of infections due to coronavirus variants that have arisen over the past few months.
Osterholm, who served as a member of President Biden's COVID-19 transition advisory board, said the variants pose a significant problem despite underscoring that existing vaccines appear to be effective against them.

Gray123:
Epidemiologist Dr. Michael Osterholm believes the U.S. is seeing a "fourth wave" of infections due to coronavirus variants that have arisen over the past few months.
Osterholm, who served as a member of President Biden's COVID-19 transition advisory board, said the variants pose a significant problem despite underscoring that existing vaccines appear to be effective against them.

We need to be careful with what these people are saying..... expressing opinions to be interpreted as facts. The above is not at all scientific.... it is based on belief.