Ivanka Trump’s personal assistant has tested positive for the deadly coronavirus, making her the third White House staff member to be infected from Covid-19, a media report said on Saturday

The assistant, who works in a personal capacity for US President Donald Trump’s daughter, has not been around her in several weeks, CNN reported. She has been teleworking for nearly two months and was tested out of caution, the report quoted a source as saying.

She was not symptomatic. Ivanka and her husband Jared Kushner both tested negative on Friday, the person familiar with the matter told the US news channel.

The development comes a day after President Trump confirmed that Vice-President Mike Pence’s press secretary Katie Miller had tested positive for the coronavirus.

“She’s a wonderful young woman, Katie, she tested very good for a long period of time and then all of a sudden today she tested positive,” Trump said during a meeting at the White House.

According to a senior official, contact tracing was performed inside the White House after Miller’s test came positive.

The White House is now making sure staffers wear masks in the White House residence, and coronavirus tests and temperature checks are being boosted throughout the West Wing. Pence, who leads the White House coronavirus task force, recently went on a trip to the Mayo Clinic without wearing a face mask.