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Need a CT scan? You may have to wait weeks, thanks to lockdowns in China and dye shortages

May 31, 2022
Because of COVID-19 restrictions, a critical Shanghai plant that produces the dye has been operating at reduced capacity for weeks.
Hospitals low on contrast dye are doing some CT scans without it or are booking patients weeks or months in advance. 
Yasuyoshi Chiba/AFP via Getty Images