Health and Human Services Secretary Alex Azar today declared the novel coronavirus (2019-nCoV) a public health emergency and ordered all U.S. citizens returning from the Wuhan, China, region to be quarantined for two weeks. The U.S. State Department yesterday issued a “do not travel” advisory for China due to the virus.

The Centers for Disease Control and Prevention also today updated its interim guidance for health care professionals, expanding the criteria for identifying patients under investigation for novel coronavirus. In a CDC call with clinicians, the agency stressed that its guidance will continue to change over time as more is learned about the outbreak, and urged clinicians to continue to check CDC’s resources for updates. 

CDC also said it issued federal quarantine orders to the 195 U.S. citizens who repatriated to the U.S. from China on Jan. 29 because of the 2019-nCoV outbreak, the first mandatory quarantine in over 50 years. The individuals will be held at the March Air Reserve Base in California for the 14-day quarantine that started when the plane took off from China. CDC said the decision comes after deliberating over data and new information, and because the passengers came from the epicenter of the outbreak in Wuhan. “If we take strong measures now, we may be able to blunt the impact of the virus on the United States,” said Nancy Messonnier, M.D., director of CDC’s National Center for Immunization and Respiratory Diseases.

The World Health Organization reports nearly 10,000 cases worldwide and more than 200 deaths in China. The CDC said the virus does spread from person-to-person, and the New England Journal of Medicine reported a case that seemed to support possible asymptomatic transmission of the infection.

For the latest information and resources on the coronavirus, visit AHA’s webpage.

Headline
The Centers for Disease Control and Prevention today released a report highlighting data on patients hospitalized during a 2025 measles outbreak centered in…
Headline
The Centers for Disease Control and Prevention released a Health Alert Network Health Update May 18 informing clinicians about testing available for patients…
Headline
An outbreak of measles in Utah has grown to 663 cases, the state’s Department of Health and Human Resources reported May 12. There have been 466 cases…
Headline
A Centers for Disease Control and Prevention report released May 14 found that U.S.-reported dengue cases in 2024 increased 359% above the annual average from…
Headline
The Centers for Disease Control and Prevention announced May 14 that 41 people across the U.S. are being monitored for symptoms of hantavirus following an…
Headline
The measles outbreak in Utah that began in June 2025 has grown to 638 cases as of May 5, according to the state’s Department of Health and Human Services. Of…