The US just confirmed its 7th coronavirus case: a man in the San Francisco Bay Area. Here's what we know about all the US patients.

The US has confirmed its seventh case of a new coronavirus that originated in Wuhan, China. The patient is a man who lives in California’s Santa Clara County, which is home to Silicon Valley, health officials announced Friday afternoon. On Thursday, the first documented instance of human-to-human transmission of the virus in the US was identified in Illinois.

The other US cases were reported in Arizona, California, and Washington. In total, the outbreak has killed more than 200 people and infected more than 9,700 since it started in December. It has spread to 22 other countries: Australia, Cambodia, Canada, Finland, France, Germany, India, Italy, Japan, Malaysia, Nepal, the Philippines, Russia, Singapore, South Korea, Sri Lanka, Taiwan, Thailand, the United Arab Emirates, the UK, the US, and Vietnam.

The coronavirus family is a large group of viruses that typically affect the respiratory tract. Coronaviruses can lead to illnesses such as the common cold, pneumonia, and severe acute respiratory syndrome (SARS), which resulted in 8,000 cases and 774 deaths in China from November 2002 to July 2003. Patients with the new coronavirus — known as 2019-nCoV — have reported symptoms like fever, coughing, and difficulty breathing.

Those who have died were mostly elderly or otherwise unwell, according to Chinese officials.

No deaths have been reported outside China.

Here’s everything we know about the seven cases in the US.

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