The deadly coronavirus that originated in Wuhan, China, has spread to 12 other countries.<br />The US has confirmed five cases: two in California, one in Arizona, one in Washington, and another in Illinois.<br />All of the patients who have tested positive had recently visited Wuhan.<br />According to Business Insider, the CDC said the risk to the US public is still low.<br />The outbreak has killed 81 people and infected more than 2,800 in mainland China.<br />The coronavirus family is a large group of viruses that typically affect the respiratory tract.<br />Coronaviruses can lead to illnesses such as the common cold, pneumonia, and severe acute respiratory syndrome.
