Fresenius, a German health care company, on Wednesday reported a net loss for the fourth quarter, but revenue remained almost unchanged from previous year. For the quarter, Fresenius recorded a net loss of €614 million ($663 million), compared with a profit of €255 million for the same period last year. This was mainly due to results from the valuation effect of the Fresenius Medical Care (FMC) unit to the tune of €521 million. Bad Homburg-based Fresenius ceded control of the crisis-ridden dialysis specialist FMC in a corporate restructuring in 2023. During the pandemic, FMC struggled with ris…