Q1 revenue plunged 20.6% year-on-year to 289.6 million euros ($318.79 million), leading to a 40.6% shrink in net profit, which came in at 41.7 million euros, the company said in a note. Revenue from COVID-related business unit dropped 78.5% in the first quarter, in line with an expected 75% decrease year-on year. DiaSorin confirmed its 2023 guidance for the full year, which sees total revenue down 14% on a yearly basis.