No more worries about mad cow: banned blood donors can give again

U.S. Army veteran Matt Schermerhorn couldn’t give blood for years because he was stationed in Europe during a deadly mad cow disease scare there. Now, he’s proud to be back in the donor’s chair.

Schermerhorn, 58, is among thousands of people, including current and former military members, who have returned to blood donation centers across the country after federal health officials lifted a ban that stood for more than two decades.

“It’s a responsibility. It’s a civic duty,” said Schermerhorn, who donated on Veterans Day at the Impactlife center in Davenport, Iowa. “You really don’t have to go out of your way too much to help your fellow man.”

Blood collectors nationwide are tracking down people like Schermerhorn, U.S. citizens who lived, worked or vacationed in the United Kingdom, France, Ireland or served at military bases in Europe during various periods between 1980 and 2001, as well as anyone who received blood transfusions in those three countries anytime since 1980.

Since 1999, those people have been banned from giving blood in the U.S. for fear that they’d been exposed to mad cow disease. Outbreaks of the cattle-borne infection swept through Europe, eventually killing at least 232 people, mostly in the U.K. Four cases have been reported in the U.S., all in people who likely acquired the infections abroad, health officials said.

The rare disease is caused by an abnormal form of a protein called a prion, which triggers damaging changes to the brain and central nervous system. It’s spread from sick cattle to people who eat contaminated beef, but it can also be transmitted through blood transfusions. But after decades of research and reassessment, the federal Food and Drug Administration has determined that the risk of the disease has abated, thanks in large part to changes in the way cattle are raised and the treatment of donated blood. The agency eased the restrictions over the past two years and fully lifted them in May.

That means hundreds of thousands of former donors can once again roll up their sleeves, perhaps bolstering U.S. blood collections, which lagged during the COVID-19 pandemic.

“The most important thing is for individuals that believe they may now be eligible to call their local blood center,” said Kate Fry, chief executive of America’s Blood Centers, which represents more than 600 blood collection sites providing nearly 60% of the U.S. blood supply.

The American Red Cross, which provides about 40% of the U.S. supply, last month began accepting donors previously deferred because of the risk of mad cow disease, formally known as variant Creutzfeldt-jakob disease, or VCJD.

Invariably fatal, with an incubation period that can last years or even decades, the emergence of VCJD in humans in the late 1990s alarmed officials responsible for the safety of the blood supply, said Dr. Rita Reik, chief medical officer for Oneblood, a collection center in Florida.

“It was a scary new disease,” Reik said. “Which is why it required such a length of time to study this disease to get a level of comfort to get to the deferral.”