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Allowing gay and bisexual men to donate blood would help alleviate chronic blood supply shortages in the U.S. Petri Oeschger/Moment via Getty Images

Gay men can now donate blood after FDA changes decades-old rule – a health policy researcher explains the benefits

In 1983, during the early days of the AIDS epidemic, the US Food and Drug Administration made the decision to ban gay men from donating blood. Now, 40 years later, it is dropping that rule.
Researchers can test blood samples taken for other reasons to see if patients have previously had COVID-19. Don Bartletti/Los Angeles Times via Getty Images

COVID-19 official counts can miss mild cases – here’s how serosurveys that analyze blood for signs of past infection can help

Your blood can hold a record of past illnesses. That information can reveal how many people have had a certain infection – like 58% of Americans having had COVID-19 by the end of February 2022.
The rewards for doing this usually aren’t monetary. Glenn Koenig/Los Angeles Times via Getty Images

Paying all blood donors might not be worth it

Because most people want to be perceived as generous, sometimes monetary incentives for doing a good deed are counterproductive.
Blood has special traits unique to every person. TippaPatt/www.shutterstock.com

What are blood types?

Every person’s blood is identified by type. Why does this matter?
Sicily, 1943: Whose blood was this U.S. soldier getting? NARA

Desegregating blood: A civil rights struggle to remember

Until 1950 the Red Cross segregated blood. It was thousands of African-Americans during World War II who forced the Red Cross to include them as donors and helped pave the way for activism of the 1960s.

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