On Sunday, the 46-year-old model took to social media to update fans about her health.
Klum revealed that she and Kaulitz were both tested for COVID-19 (coronavirus) and while they await their results are practicing social distancing.
“Like many of you, I also have been sick all week and, unfortunately, my husband who returned from his tour a couple of days ago, is also feeling ill,” the "America's Got Talent" judge wrote.
"To be safe, we are staying apart until we get the results of our coronavirus tests (that we were finally able to get today) back. We don’t want to spread germs and risk others getting sicker ... even each other! As much as I want to embrace him and kiss him, it is more important to do the right thing and not spread further," Klum continued.
She went on to encourage citizens to continue to be "responsible" and "listen to officials."
“These are strange times ... but in these moments, you remember what’s really important — the people you love and keeping them safe. Social distancing is what we all need to do right now to be responsible citizens of the world. We are all in this together and it is up to us to protect our loved ones, and our neighbors and our communities. Please listen to the officials and stay at home if you can and physically distance yourself from other people … especially if you are not feeling well. I see all the beautiful things people are doing for each other all over the globe and that gives me hope! Sending all of you love and positivity and healing vibes … together we can get through this but we need to be proactive so that we can all have a bright and healthy future," she wrote.
Other celebrities affected by the coronavirus include Tom Hanks and his wife Rita Wilson. They both tested positive for the virus while in Australia last week and have been under quarantine. Matthew Broderick’s Sister Janet and James Bond actress Olga Kurylenko have also tested positive.