COVID testing boom and bust (2020-2023)
Thermo Fisher's COVID diagnostics revenue surged during the pandemic, peaking alongside global testing demand. When testing collapsed in 2022-2023, the company swung to negative organic growth as that revenue vanished.
The company cut costs and refocused on academic, pharma and bioprocessing markets.
The episode showed how volatile demand can be in life-sciences tools, with a single end market able to swing results dramatically.
It explains why 2026's 5% organic growth matters: it is the strongest since the COVID-era peak, marking a genuine recovery rather than a small uptick.
