The Latest: Train operator to require masks on board

The Latest on the coronavirus pandemic. The new coronavirus causes mild or moderate symptoms for most people. For some, especially older adults and people with existing health problems, it can cause more severe illness or death.
TOP OF THE HOUR:
— Fears of ‘second wave’ hang over coronavirus successes.
— Train operator to require passengers to wear masks.
— Plasma from virus survivor sped up recovery for new mother in Poland, doctor says.
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BRUSSELS — All pa