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The "2019 novel coronavirus " (Covid-19) is a new coronavirus and the responsible agent for an outbreak of pneumonia cases in Wuhan City, Hubei Province, China. Initially reported to the World Health Organization (WHO) on December 31, 2019, it is reportedly linked to a large seafood and animal market.
The situation is rapidly evolving. There have been thousands confirmed human infections and 106 deaths as of January 27, 2020. Cases have been confirmed in at least 16 countries, including the United States and Canada. For an up-to-date heat map of global cases, click here.
The CDC criteria for patients under investigation (PUI) for Covid-19 include one of the following 2 scenarios.
Note: Fever may not be present in some patients, such as those who are very young, elderly, immunosuppressed, or taking certain fever-lowering medications. Clinical judgment should be used.
The differential diagnosis of the 2019 novel coronavirus includes other etiologies of lower respiratory tract infection.
Bacterial pneumonia, eg:
Atypical bacterial pneumonia, eg:
If you Suspect Covid-19:
At present, testing for Covid-19 in the United States can only be carried out by the CDC.
No vaccine or specific treatment for Covid-19 is available; care is supportive.
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