Coronavirus Disease 2019

Information for
for Healthcare Providers

Please refresh your browser to see the latest updates and versions of our documents.
New and Noteworthy
For the latest information, view LA County data and DPH press releases. Join the Los Angeles Health Alert Network (LAHAN) to receive DPH email advisories on COVID-19 for health professionals.

  • False Positive Results with BD SARS-CoV-2 Reagents for the BD Max System (7-6-20) FDA Letter to Clinical Laboratory Staff and Health Care Providers
  • CDC Health Advisory: Serious Adverse Health Events Associated with Methanol-based Hand Sanitizers (7-6-20) CDC HAN
  • LAC DPH Health Advisory: Increasing COVID-19 Cases; Isolation and Quarantine; Testing Access (7-4-20) LAHAN
  • Laboratories Providing COVID-19 PCR Molecular Testing (7-1-20) Reference Guide LA County Department of Health Services (LAC DHS) has created this guide to help organizations identify a laboratory provider that best fits their needs.
  • SARS CoV-2 Reinfection Study: The CDC is asking clinicians to report suspected cases of re-infection with SARS-CoV-2. See Reinfection Study below.
Contact Us

For healthcare provider questions on testing, reporting, hospital discharges, or other COVID-related issues, (that are not resolved by our Provider FAQs page) please call 213-240-7941 from 8:00am-5:00pm, Monday through Friday. For time-sensitive questions after hours, call 213-974-1234 to reach the on-call clinician.

For medical professionals interested in supporting the COVID-19 response, visit the City of Los Angeles Medical Corps and the California COVID Health Corps webpages.

Laboratory Testing

Laboratories Providing COVID-19 PCR Molecular Testing (7-1-20) Reference Guide LA County Department of Health Services (LAC DHS) has created this guide to help organizations identify a laboratory provider that best fits their needs. This document provides an overview of some of the laboratories offering testing to LA County providers and residents.

LA County Public Health Laboratory (PHL): Diagnostic testing for SARS-CoV-2 infection is available from PHL for high priority patients and settings. View the PHL COVID-19 Testing page for PHL testing criteria and specimen instructions.

View the testing page for information regarding test types and recommendations.


All COVID-19 associated deaths must be reported immediately by healthcare providers. All other COVID-19 cases must be reported by healthcare providers within a day. All SARS-CoV-2 test results must also be reported by laboratories within a day. Visit the Reporting page for more information.

CDC SARS CoV-2 Reinfection Study

The CDC is working with the Emerging Infections Network (EIN, Operated by Infectious Disease Society of America) to better understand reinfection, viral shedding, and immunity among patients with a history of laboratory confirmed COVID-19 disease.

Clinicians are asked to report to LAC DPH by calling 213-240-7941 from 8:00am-5:00pm Monday to Friday if they see a patient who meets the following criteria:

  • Aged ≥18 years with laboratory confirmed COVID-19 disease with clinical recovery for approximately 10 days after symptom onset or diagnosis (if asymptomatic), who subsequently had any of the following:
    • Two documented negative PCR results followed by a positive result
    • Recurrence of symptoms with a positive PCR result
    • Positive PCR results ≥40 days after initial symptom onset or diagnosis (if asymptomatic) without recurrence of symptoms

for background information.

Background Information

It remains unclear if infection with SARS-CoV-2 results in immunity and if reinfection can occur in the short term. Several reports from China and South Korea have described cases of recurrent SARS-CoV-2 RNA detection (with or without symptoms) among patients who recovered from COVID-19; whether these cases represent re-infection versus intermittent viral RNA shedding is still being determined. The extent to which such cases are occurring in the United States is unknown.

The objective of this investigation is to describe the clinical characteristics, management, and outcomes of clinician-suspected cases of reinfection to better understand the natural history of SARS-CoV-2 in the United States and guide public health action (e.g., further testing, control measures). This investigation was determined to be a public health surveillance activity (non- research). The public health emergency Paperwork Reduction Act waiver applies to the COVID-19 related data collection for this investigation. LAC DPH will facilitate submission of cases to the CDC through our health provider hotline which can be reached by calling 213-240-7941 from 8:00am-5:00pm Monday to Friday and 213-974-1234 (After Hours Emergency Operator).

Infection Prevention, Including Personal Protective Equipment (PPE)
Visit the infection control page for information on infection prevention, assuring PPE supplies, and resources such as a COVID-19 PPE poster in English and Spanish.
Healthcare Facilities (including Long Term Care Facilities)
Visit the healthcare facilities page for information about patient discharge/transfer, surge planning, health care personnel monitoring, and housing for persons experiencing homelessness. The page also includes posters to display in your facility.
There is also guidance for long term care facilities, including skilled nursing facilities (SNFs)
Emergency Medical Service
Guidance for Monitoring EMS Personnel (4-27-20) Guidance
FAQs for EMS (6-24-20) FAQs
Prevention and Control in Firehouses
(7-2-20) Guidance
Prevention and Control in Ambulance Quarters
(7-2-20) Guidance
Health Officer Orders
  • Access to Diagnostic Testing through Healthcare Facilities (7-8-20) Order
  • Home Quarantine (7-1-20) Order
  • Home Isolation (7-1-20) Order
  • Prevention of COVID-19 Transmission in Licensed Congregate Health Care Facilities: Order (4-24-20); FAQ (5-20-20)
  • Updated COVID-19 Reporting Requirements (3-24-20) Order
  • Other Health Officer Orders For all Health Officer orders (including those related to individuals and reopening), protocols, FAQs, and translated documents, visit the Health Officer Order section of the DPH COVID page. Orders
Educational Opportunities
  • COVID-19 and Multisystem Inflammatory Syndrome in Children (MIS-C) Webinar recorded on 6-10-20. Hosted by Children’s Hospital Los Angeles. To view the recording or download the slides, click here.
  • CDC Webinar Multisystem Inflammatory Syndrome in Children (MIS-C): Webinar recorded 05-18-20. Webinar recording
  • CDC Clinician Outreach and Communication Activities (COCA): COVID-19 Calls/Webinars
  • COVID-19: An ACP Physician's Guide + Resources
LA County COVID-19 Data
  • CMS COVID-19 Nursing Home Data: includes data reported by nursing homes to the CDC’s National Healthcare Safety Network (NHSN) system COVID-19 Long Term Care Facility Module, including Resident Impact, Facility Capacity, Staff & Personnel, and Supplies & Personal Protective Equipment, and Ventilator Capacity and Supplies Data Elements. Public File
  • Case Summary page: tables with cases by demographics and city/community, as well as hospitalizations and deaths. Also includes a listing of residential congregate settings with one or more cases and non-residential congregate settings (including workplaces, food and retail stores and educational settings) with five or more cases. Daily case summary
  • Metrics to Guide Reopening LA County: metrics and targets for testing, deaths, hospitalizations and hospital capacity and PPE supplies. Dashboard
  • Interactive COVID-19 surveillance dashboard: tables, maps, graphs, and charts including cases, counts by date, deaths, and tests performed. Dashboard
  • Healthcare Worker Cases: by occupational setting and role, known exposure and hospitalization and demographics of COVID-19-related healthcare worker deaths. 07-02-20
  • COVID Watch: a summary of surveillance data for coronaviruses and other respiratory viruses. Includes data on pneumonia, influenza, and COVID-19 mortality as well as ED visits for Influenza-Like Illness. 07-03-20
  • Press releases: daily description of the number of cases by age, and deaths by age and underlying illness. Daily press release
Additional COVID-19 Resources

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  • Public Health has made reasonable efforts to provide accurate translation. However, no computerized translation is perfect and is not intended to replace traditional translation methods. If questions arise concerning the accuracy of the information, please refer to the English edition of the website, which is the official version.

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