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CDC: Update and Interim Guidance on Outbreak of
2019 Novel Coronavirus (2019-nCoV)

February 1, 2020
KEY MESSAGES
  • The Centers for Disease Control and Prevention (CDC) continues to closely monitor an outbreak of a 2019 Novel Coronavirus (2019-nCoV) in Wuhan City, Hubei Province, China that began in December 2019. 
  • This CDC Health Alert Network (HAN) Update provides a situational update and interim guidance to state and local health departments that supersedes guidance in CDC’s HAN 426 distributed on January 17, 2020.
  • The definition of Patients Under Investigation (PUI) has been expanded, and includes a flow chart to identify and assess 2019-nCoV, information on evaluation and testing, guidance for clinicians caring for patients with 2019-nCoV, and updated infection prevention and control guidance.  
  • Providers should contact the Long Beach Communicable Disease Control Program immediately to report suspect cases of 2019-nCOV at 562.570.4302 during regular business hours or 562.500.5537 after hours and on weekends.
This is an official
CDC Health Update

 
Distributed via the CDC Health Alert Network 
February 1, 2020, 0900 ET (9:00 AM ET) 
CDCHAN-00427
 
Update and Interim Guidance on Outbreak of 2019 Novel Coronavirus (2019-nCoV)
 
Summary
The Centers for Disease Control and Prevention (CDC) continues to closely monitor an outbreak of respiratory illness caused by a novel coronavirus (2019-nCoV) that was initially detected in Wuhan City, Hubei Province, China in December 2019. 

This CDC Health Alert Network (HAN) Update provides a situational update and interim guidance to state and local health departments that supersedes guidance in CDC’s HAN 426 distributed on January 17, 2020. It also adds
Early in the outbreak, many of the patients with respiratory illness caused by 2019-nCoV in China had exposure to a large seafood and live animal market, suggesting animal-to-human transmission. More recently, cases have been confirmed with no exposure to animal markets, indicating that person-to-person spread of the virus has occurred. Chinese officials report that sustained person-to-person spread in the community is occurring in China. 

The first US case-patient was identified on January 21, 2020, and had recently traveled from Wuhan, China. Since that time, six additional cases have been confirmed in the United States, four among persons who traveled from Wuhan, and one a close contact of a confirmed case. Globally, reported illnesses in people with 2019-nCoV have ranged from mild (no or few signs and symptoms), to severe, including death. These findings are consistent with other coronaviruses, including Severe Acute Respiratory Syndrome (SARS) (https://www.cdc.gov/sars/) and Middle East Respiratory Syndrome (MERS) (https://www.cdc.gov/coronavirus/mers/index.html). Additional information about 2019-nCoV is needed to better understand transmission, disease severity, and risk to the general population. The goal of the ongoing US public health response is to identify and contain this outbreak and prevent sustained spread of 2019-nCoV in the United States. 

Recommendations for Screening of Patients for 2019-nCoV in Healthcare Facilities 
Recommendations for screening of patients for possible 2019-nCoV infection are based on (1) current knowledge of the characteristics of clinical illness observed in early cases, and (2) the geographic distribution of current cases. They reflect the current public health goal of rapidly containing and preventing transmission of 2019-nCoV illness. 

Patients presenting to healthcare facilities should be assessed for exposures associated with risk of 2019-nCoV infections (e.g., travel to China or close contact with a confirmed case) and for symptoms consistent with 2019-nCoV infection (https://www.cdc.gov/coronavirus/2019-nCoV/hcp/clinical-criteria.html). The assessment is intended to allow healthcare providers to make decisions about appropriate infection control and management of patients.  Note that the signs and symptoms of 2019-nCoV overlap with those associated with other viral respiratory tract infections. Given the time of year, common respiratory illnesses, including influenza, should also be considered in patients who are screened. (Figure 1)

Clinicians should ask:
  • Does the person have fever or symptoms of lower respiratory infection, such as cough or shortness of breath? 
AND
  • Has the patient traveled to mainland China within 14 days of symptom onset?
OR
  • Has the patient had close contact* with a person confirmed with 2019-nCoV infection?
 
Figure 1.
 
Flowchart to Identify and Assess 2019 Novel Coronavirus

If a patient meets these criteria:
  • To minimize the risk that other people will be exposed to individuals who may have 2019-nCoV, patients who report having these symptoms should be asked to wear a surgical mask as soon as they are identified and directed to a separate area, if possible, with at least 6 feet (2 meters) separation from other persons. Patients should be evaluated in a private room with the door closed, ideally an airborne infection isolation room (AIIR), if available. Healthcare personnel entering the room should use standard precautions, contact precautions, airborne precautions, and use eye protection (e.g., goggles or a face shield). For more information about this, see CDC’s Interim Infection Prevention and Control Recommendations for Patients with Known or Patients Under Investigation for 2019 Novel Coronavirus (2019-nCoV) in a Healthcare Setting (https://www.cdc.gov/coronavirus/2019-nCoV/hcp/infection-control.html). 

Clinicians should immediately notify the healthcare facility’s infection control personnel and local health department. The health department will determine if this patient needs to be considered a PUI for 2019-nCoV and be tested for infection.

Criteria to Guide Evaluation and Testing of Patients Under Investigation (PUI) for 2019-nCoV
Local health departments, in consultation with clinicians, should determine whether a patient is a PUI for 2019-nCoV. The CDC clinical criteria for 2019-nCoV PUIs have been developed based on available information about this novel virus, as well as what is known about SARS and MERS. These criteria are subject to change as additional information becomes available.  
 
Clinical Features AND Epidemiologic Risk
Fever** or signs/symptoms of lower respiratory illness (e.g. cough or shortness of breath)   AND Any person, including health care workers, who has had close contact* with a laboratory-confirmed (3) 2019-nCoV patient within 14 days of symptom onset
Fever** and signs/symptoms of a lower respiratory illness (e.g., cough or shortness of breath)
 
AND A history of travel from Hubei Province, China within 14 days of symptom onset
Fever** and signs/symptoms of a lower respiratory illness (e.g., cough or shortness of breath) requiring hospitalization AND A history of travel from mainland China within 14 days of symptom onset

These criteria are intended to serve as guidance for evaluation and testing. Patients should be evaluated and discussed with public health departments on a case-by-case basis for possible 2019-nCoV infection.  Testing decisions might be further informed by the clinical presentation or exposure history (e.g., uncertain travel or exposure), and the presence of an alternative diagnosis that explains their clinical presentation. 

Recommendations for Reporting, Testing, and Specimen Collection
Healthcare providers should immediately notify infection control personnel at their healthcare facility if a patient is classified a PUI for 2019-nCoV. State health departments that have identified a PUI should immediately contact CDC’s Emergency Operations Center (EOC) at 770-488-7100 and complete a 2019-nCoV PUI case investigation form (https://www.cdc.gov/coronavirus/2019-ncov/downloads/pui-form.pdf). CDC’s EOC will assist local and state health departments with obtaining, storing, and shipping appropriate specimens to CDC, including afterhours or on weekends or holidays. Currently, diagnostic testing for 2019-nCoV can be done only at CDC. Testing for other respiratory pathogens should not delay specimen shipping to CDC.

For initial diagnostic testing for 2019-nCoV, CDC recommends collecting and testing upper respiratory (nasopharyngeal AND oropharyngeal swabs), and lower respiratory (sputum, if possible)) for those patients with productive coughs. Induction of sputum is not indicated. Specimens should be collected as soon as possible once a PUI is identified, regardless of the time of symptom onset. See Interim Guidelines for Collecting, Handling, and Testing Clinical Specimens from Patients Under Investigation (PUIs) for 2019 Novel Coronavirus (2019-nCoV) (https://www.cdc.gov/coronavirus/2019-nCoV/lab/guidelines-clinical-specimens.html).

Recommendations for Healthcare Providers
No vaccine or specific treatment for 2019-nCoV infection is available. At present, medical care for patients with 2019-nCoV is supportive. 

Persons with confirmed or suspected 2019-nCoV infection who are hospitalized should be evaluated and cared for in a private room with the door closed, ideally an airborne infection isolation room, if available. For more information, see Interim Infection Prevention and Control Recommendations for Patients with Known or Patients Under Investigation for 2019 Novel Coronavirus (2019-nCoV) in a Healthcare Setting (https://www.cdc.gov/coronavirus/2019-nCoV/hcp/infection-control.html).

Home care and isolation may be an option, based on clinical and public health assessment, for some persons. Please see Interim Guidance for Preventing the Spread of 2019 Novel Coronavirus (2019-nCoV) in Homes and Communities (https://www.cdc.gov/coronavirus/2019-ncov/hcp/guidance-prevent-spread.html). 

Those isolated at home should be monitored by public health officials to the extent possible. Refer to Interim Guidance for Implementing Home Care of People Not Requiring Hospitalization for 2019 Novel Coronavirus (2019-nCoV) (https://www.cdc.gov/coronavirus/2019-ncov/hcp/guidance-home-care.html) for more information. 

Notes 
*Close contact is defined as:
  • a) being within approximately 6 feet (2 meters), or within the room or care area, of a 2019-nCoV case for a prolonged period of time while not wearing recommended personal protective equipment or PPE (e.g., gowns, gloves, NIOSH-certified disposable N95 respirator, eye protection); close contact can include caring for, living with, visiting, or sharing a health care waiting area or room with a 2019-nCoV case      
- or -
  • b) having direct contact with infectious secretions of a 2019-nCoV case (e.g., being coughed on) while not wearing recommended personal protective equipment. 
**Fever may be subjective or confirmed 

See CDC’s updated Interim Infection Prevention and Control Recommendations for Patients with Known or Patients Under Investigation for 2019 Novel Coronavirus (2019-nCoV) in a Healthcare Setting (https://www.cdc.gov/coronavirus/2019-ncov/infection-control.html). 

Data to inform the definition of close contact are limited. Considerations when assessing close contact include the duration of exposure (e.g., longer exposure time likely increases exposure risk) and the clinical symptoms of the person with 2019-nCoV (e.g., coughing likely increases exposure risk as does exposure to a severely ill patient). Special consideration should be given to those exposed in health care settings.
3. Documentation of laboratory-confirmation of 2019-nCoV may not be possible for travelers or persons caring for patients in other countries. 
4. Category also includes any member of a cluster of patients with severe acute lower respiratory illness (e.g., pneumonia, ARDS) of unknown etiology in which 2019-nCoV is being considered that requires hospitalization. Such persons should be evaluated in consultation with state and local health departments regardless of travel history.

For More Information 
More information is available at the 2019 Novel Coronavirus website (https://www.cdc.gov/coronavirus/2019-ncov/index.html) or by 
calling 800-CDC-INFO | (800-232-4636) | TTY: (888) 232-6348

 
The Centers for Disease Control and Prevention (CDC) protects people's health and safety by preventing and controlling diseases and injuries; enhances health decisions by providing credible information on critical health issues; and promotes healthy living through strong partnerships with local, national, and international organizations.

Categories of Health Alert Network messages: 

Health Alert - Requires immediate action or attention; highest level of importance

Health Advisory -  May not require immediate action; provides important information for a specific incident or situation

Health Update - Unlikely to require immediate action; provides updated information regarding an incident or situation

HAN Info Service - Does not require immediate action; provides general public health information

 
##This message was distributed to state and local health officers, state and local epidemiologists, state and local laboratory directors, public information officers, HAN coordinators, and clinician organizations## 


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