The Lionesses meet Spain in the quarter-finals of Euro 2022 on Wednesday night.
Goalkeeper Hannah Hampton became the third person in the squad to contract the virus on Tuesday, after defender Lotte Wubben-Moy and Wiegman herself had previously registered positive tests.
However, the Dutch manager assured her staff had prepared for any eventuality and insisted her squad would adapt to any challenges that might come their way.
“It’s not the worst nightmare, it’s just the situation we have to deal with,” Wiegman said.
“We got everything going. We just deal with the situation. I was involved in the entire training, only from a great distance with a mask on.
“With the technical staff, we have such a fluid workflow that everyone knows what needs to be done.”
Players were previously free to roam from the Lionesses’ base at The Lensbury in Teddington, south-west London, but Wiegman admitted they had to take stricter measures to avoid further positive tests.
“During our preparations, which started last year, we’ve always said we don’t know how things are going and hopefully Covid isn’t there anymore, but if it is we need to take measurements,” she added.
“We’ll do that now. We’re really aware, we’re being very careful, but we’re trying to stay in our bubble and do the right things.
“The situation changed because I became positive. We want to do whatever it takes to be successful and we need to act, so yes we’ve done some tougher measurements and everyone understands it.
“It’s not entirely new for us, of course you don’t want it at the EM, but it’s not new, so we know what we have to do.
“We have to stay calm with those who can play and continue what we are doing.
“Hopefully we’re all keeping fit and if there’s something positive we need to be agile and creative and move on with those who are fit.”
Wiegman’s positive test meant she was not on the touchline in England’s 5-0 win over Northern Ireland in their final group game and still doesn’t know if she will be in the dugout in Brighton tomorrow.
“I’m ready to go, but I have to wait,” Wiegman admitted. “I’m very hopeful but we’ll see what happens. We know if I can’t be there, I will be there in some other way.
“We had a line, so during the game I was in touch with the technical staff all the time, so we stayed in touch all the time and if necessary we will do that tomorrow.
“There’s plenty of space so I can get some fresh air, keep my distance from everyone and have some virtual meetings with the staff.
“It’s much better if you do it live and together, but we’ve learned over the last three years that we can be efficient in different ways, so let’s do that now – just adapt to the situation.”
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