President Donald Trump urges Americans who have recovered from Covid-19 to donate their plasma at local blood banks to help those who contract the virus potentially get better faster. Plasma is the liquid portion of blood, and when taken from someone who has recovered, it’s known as convalescent plasma. It’s thought that the antibodies that occur after a person recovers from the coronavirus can help others fight the infection. Trump speaks at the American Red Cross headquarters in Washington. (Excerpts) (Source: Bloomberg)