Early investigationsPatient managementLaboratory guidanceSurveillance and case definitionsInfection prevention and control Early investigations risk factors for 2019 -nove coronavirus(2019-nCoV) infection among health care works in health care Household transmission investigation protocol for 2019-novel coronavirus The First Few X (ffx) Cases and contact investigation protocol for COVID-19 Patient management clinical management of serve actue repository infection wen novel virus infection is suspected Homecare for patients wit suspectd novel coronavirus Laboratory guidance Frequently Asked Questions about Biosafety and COVID-19 Interim Laboratory Biosafety Guidelines_ COVID-19 _ CDC Clinical Specimens_ Novel Coronavirus (2019-nCoV) _ CDC Laboratory testing for 2019 novel coronavirus in suspected uman cases Laboratory biosafety guidance related to coronavirus disease 2019 Surveillance and case definitions Global surveillance for human witth novel coronavirus Advice on the Use of Masks Home care for patients with suspected novel coronavirus (nCoV) infection coronavirus disease outbreak:rights ,roles and responsibilities of health worker Points of entry and mass gatheringsNaming the coronavirus disease (COVID-2019) and the virus that causes it Points of entry and mass gatherings key planinig recommendations for Mass Gaterings in the context of the current COVID-19 outbreak Management of ill travellers at point of entry-international airports ports and ground crossingings- Naming the coronavirus disease (COVID-2019) and the virus that causes it