The U.S. central bank is weighing whether to expand the scope of its interventions in financial markets being battered by concerns over the coronavirus, Philadelphia Federal Reserve Bank President Patrick Harker said.

Local issuers in Texas also received authority to postpone bond measure elections that are slated for May.

Puerto Rico Gov. Wanda Vázquez Garced issued an order for all residents except a few classes of essential employees to remain at home.

Benchmarks showed again that the short end was being hit hardest — 30 basis points up on the one-year and at least 10 up on the long end, but the entire curve was being cut drastically. The primary market was again at a standstill.

Worries about the spreading virus prompt a shift to online and phone work.

Questions about the impact of COVID-19 surround the state-run authority, which operates New York City transit and is one of the largest municipal issuers.

Airports have nearly $100 billion in infrastructure debt that requires about $7 billion in airport bond principal and interest payments this year.

Tax-exempt municipal yields rose substantially last week causing the MSRB to take a look at trade data, said John Bagley, MSRB chief market structure officer.