CNBC screenshot by Chris Matyszczyk/CNET

Apple co-founder Steve Wozniak said he and his wife Janet “may have both been patient zero” for the spread of the novel coronavirus in the US. On Monday, Woz tweeted the couple had returned from China on Jan. 4. “Checking out Janet’s bad cough” at West Coast Sports Institute, a clinic in Santa Clara, California, he said in a tweet.

Woz’s tweet comes as six deaths, all in Washington State, have been confirmed in the US due to the coronavirus. The virus has also spread in Santa Clara, where there are nine cases.

Wozniak didn’t immediately respond to a request for further comment, or an update or more thorough explanation of the situation.

The novel coronavirus, known as SARS-CoV-2, causes an illness exhibiting pneumonia-like symptoms. It was first reported to the WHO on Dec. 31 after originating in Wuhan, China, and spreading to Asia, the Americas, Australia, Europe, the UK, Africa and the Middle EastChinese scientists have linked the disease to a family of viruses known as coronaviruses that include the deadly SARS and Middle East respiratory syndrome, or MERS. 

The novel coronavirus causes a disesase called COVID-19.  Deaths from the disease now top 3,000 and over 90,000 have been infected.