Roughly 300 secret service officers and agents have had to isolote or quarantine since March beacuse they were infected or exposed colleagues, according to two people with knowledgde of the figure.
The decision comes as countries around the world seal their borders and ban travel to stop the fast-spreading COVID-19 pandemic that has claimed over 9,000 lives so far.
The move to impeach Trump gained momentum on Sunday with the House Democrats announcing to introduce the article of impeachment against the outgoing Republican president on Monday.
The development is likely to bring to standstill Trump's hectic election campaign.
The brief drive through Rockville Pike in Bethesda, a Maryland suburb of Washington DC, that separates the National Institute of Health and Walter Reed National Military Medical Center, brought cheers to his supporters who have been praying for the 74-year-old president's health ahead of the presidential election next month.