COVID-19 patients under age 65 with type AB blood have a higher risk of becoming seriously ill from the virus while those with type O have a lower risk, a joint research coronavirus task force ...

I’ve researched, developed, and tested dozens of stain removal techniques and laundry solutions over the past 12 years, and few are quite as reliable as using hydrogen peroxide on blood stains.

IN medico-legal practice, blood stains are usually identified by the benzidine and Kastle-Mayer tests, followed by confirmatory specific tests for hæmoglobin as hæmatin or hæmochromogen.