ABT’s COVID-diagnostics sales have been a proxy for the trajectory of the pandemic per se. These are the numbers for the trailing seven quarters: 4Q21 $2.3B 3Q21 $1.9B 2Q21 $1.5B 1Q21 $2.2B 4Q20 $2.4B 3Q20 $0.9B 2Q20 $0.6B ABT reports 1Q22 financials tomorrow morning.