The President of the European Parliament (EP) David Sassoli delivers an opening statement at the EP Plenary session in Brussels, Belgium, Oct. 5, 2020. The President of the European Parliament David Sassoli said Thursday that he had decided to self-isolate after contact with a staff member who tested positive for COVID-19. (Photos: Xinhua)

The President of the European Parliament David Sassoli attends a press conference in Brussels, Belgium, Oct. 1, 2020. The President of the European Parliament David Sassoli said Thursday that he had decided to self-isolate after contact with a staff member who tested positive for COVID-19.

The President of the European Parliament David Sassoli attends a press conference in Brussels, Belgium, Oct. 1, 2020. The President of the European Parliament David Sassoli said Thursday that he had decided to self-isolate after contact with a staff member who tested positive for COVID-19.

The President of the European Parliament (EP) David Sassoli delivers an opening statement at the EP Plenary session in Brussels, Belgium, Oct. 5, 2020. The President of the European Parliament David Sassoli said Thursday that he had decided to self-isolate after contact with a staff member who tested positive for COVID-19.