WASHINGTON—By the time Rep. Mario Diaz-Balart (R., Fla.) recovered from the new coronavirus and emerged from his quarantine, he had six bags of accumulated trash piled up in his Capitol Hill apartment.
Mr. Diaz-Balart, one of the first members of Congress to test positive for the virus that causes the respiratory disease known as Covid-19, stayed home for three weeks to avoid spreading the illness. He said he hand-washed T-shirts and underwear in his sink, rather than trek downstairs to his building’s washing machine. During…