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Why so many companies want your blood

Blood is big business in the United States, making up over 2% of the country's exports. Since there's no substitute for human blood, demand can be hard to meet. During the pandemic, the U.S. faced a dangerous blood shortage, prompting the FDA to look harder at its ban on blood donations from gay and bisexual men. In the U.S., it's legal to compensate people for their blood donation, creating a unique economy where for some people donating plasma is an economic coping mechanism.
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