What is the rate at which samples of blood from those known to be infected, are submitted, and processed for testing of various strains?
What is the geographical distribution patients subject to those tests, and how has it changed over time?
Are the conclusions affected by the unknown percentage of asymptomatic carriers or patients with "long haul" COVID?
How much does the relative population of different alleles of the virus, in an individual patient, change over time? Is this affected by mutations of their original infection, or by poorly-defended superinfections from others?
I’m sorry. What is it you’re responding to?