WASHINGTON — Sen. Bob Casey, D-Pa., announced Friday he had tested positive for coronavirus antibodies after taking an antibody test last week.
"This positive test means that I likely had COVID-19 at some point over the last several months and have since developed an antibody response to the virus," he said in a press release issued Friday.
Casey said he had experienced "a low-grade fever and some mild flu-like symptoms for a number of days" earlier in the spring. He self-quarantined and worked from home in Scranton, Pennsylvania, for two weeks after discussing his symptoms with his doctor. His family was out of town at the time, so they were not exposed.
He did not seek treatment because the symptoms were mild, and the fever went away by mid-April, Casey said.
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The Pennsylvania Democrat said he would be donating his plasma in Taylor, Pennsylvania, to help coronavirus patients.
Casey's announcement came after Sen. Tim Kaine, D-Va., said Thursday he and his wife also tested positive for coronavirus antibodies after experiencing flu-like symptoms earlier in the year.
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CDC guidelines on coronavirus antibody tests note that positive antibody test results do not necessarily indicate immunity from the virus, and false-positive results are possible.
"Serologic test results do not indicate with certainty the presence or absence of current or previous infection with SARS-CoV-2," the CDC writes.