Health Department

Fairfax County, Virginia

CONTACT INFORMATION: Our administration office at 10777 Main Street in Fairfax is open during regular business hours 8 a.m. - 4:30 p.m., Monday - Friday. Clinic services are not offered at this location.

TTY 711

10777 Main Street
Fairfax, VA 22030

Gloria Addo-Ayensu, M.D., M.P.H.,
Director of Health

Health Alerts and Advisories

Message Categories

  • Health Alert conveys the highest level of importance; warrants immediate action or attention.
  • Health Advisory provides important information for a specific incident or situation; may not require immediate action.

To request Fairfax County Health Department alerts published before July 2018, email

See recent Centers for Disease Control and Prevention (CDC) Health Alerts.

2020-2021 Seasonal Influenza: Updates, Vaccine and Reporting Reminder with Resources for Healthcare Professionals (during the COVID-19 Pandemic)

September 18, 2020



October 1st marks the beginning of influenza season surveillance. The 2019-2020 influenza season included 19 weeks of widespread activity before dropping dramatically in April coinciding with measures that were instituted to combat COVID-19. This flu season will require even more rigorous measures to strengthen surveillance and preventive…

COVID-19 Laboratory Updates

September 15, 2020

Health Advisory


RT-PCR is the gold-standard viral diagnostic test for SARS-CoV-2, the virus that causes COVID-19. FDA has issued Emergency Use Authorizations (EUA) for four test systems to detect SARS-CoV-2 antigens from respiratory swab specimens. These tests offer rapid, point-of-care diagnosis. The CDC recently released interim guidance for rapid antigen…

Letter to Clinicians: Acute Flaccid Myelitis

August 5, 2020

Health Alert

The Virginia Department of Health released a letter to clinicians ahead of theapproaching acute flaccid myelitis (AFM) season. The letter providesresources for evaluating and reporting a suspect case.

AFM is a rare but serious illness for which there is no known definitive treatment or means of prevention. It is most commonly seen in young children, the…

COVID-19 Healthcare Updates

July 6, 2020

Health Advisory


On July 1, Virginia entered Phase 3 of reopening. To avoid the resurgence of disease experienced in many other states and contributing to record numbers of new infections, two actions are critical: 1) Individuals must maintain protective behaviors; and 2) Persons who have fever and/or symptoms consistent with COVID-19 must be tested. A positive…

COVID-19 Public Health Testing Guidance Update & Request Process

March 25, 2020


The criteria for COVID-19 public health testing by the Virginia Department of Health (VDH) at the state lab (DCLS) have been updated. This update is reflective of public health’s shift to prioritize case identification amonghigh risk populations and de-emphasizes the testing of symptomatic contacts to a confirmed case in non-high-risk settings. Please utilize ...

COVID-19 Public Health Testing Guidance

March 17, 2020


The criteria for COVID-19 public health testing by the Virginia Department of Health (VDH) at the state lab (DCLS) have been updated. Please utilize the attached public health testing algorithm, which can also be found on FCHD’s COVID-19 provider webpage. FCHD does not…

COVID-19 Commercial Testing Guidance

March 12, 2020

Health Alert


COVID-19 commercial testing capabilities have been rapidly changing over the past week; PCR testing is now available for healthcare providers through LabCorp and Quest Diagnostics. Testing through Mayo Clinic, UVA and VCU is currently under development. Fairfax County Health Department (FCHD) works with the Virginia Department of Health (VDH) to…

First Fairfax Health District Case of COVID-19 Infection and Criteria for COVID-19 Testing and Test Request Process

March 9, 2020

Health Alert


A Fairfax Health District resident has been identified as a presumptive positive COVID-19 case based on testing at the Virginia state laboratory; confirmation by CDC is pending. The patient is Fairfax City resident in their 80s who traveled internationally. The patient developed respiratory symptoms on February 28 and was hospitalized on March…

UPDATE: Expansion of Persons Under Investigation (PUI) Criteria for COVID-2019

February 28, 2020

Health Advisory


• The CDC clinical criteria to guide evaluation of persons under investigation (PUI) for COVID-19 has been updated (02/27/2020),

• Healthcare providers should immediately notify both…

Confirmed measles case with multiple exposures in Northern VA, including Fairfax County

January 31, 2020

Health Alert


A measles case has been identified in Northern Virginia associated with international travel. The case arrived at Dulles Airport the evening of January 26 and visited a health care facility and other locations in Fairfax County during their infectious period. The Fairfax County Health Department is contacting people who are known to have been…

UPDATE- Expansion of Patient Under Investigation Criteria for 2019 Novel Coronavirus & Negative Result for Northern Virginia Patient Under Investigation

January 31, 2020



The patient under investigation (PUI) criteria has been updated by the CDC to include recent travel to Hubei Province and mainland China. The updated PUI algorithm can be seen below. Additionally, today, January 31, 2020, the Virginia Department of Health (VDH) received laboratory confirmation from the CDC ruling out novel coronavirus for the…

2019 Novel Coronavirus (2019-nCoV) Update

January 23, 2020

Health Advisory


• As of January 22, hundreds of confirmed cases of 2019-nCoV have been identified in China with several deaths. Travel associated cases have been identified in Thailand, Japan and South Korea, and one case has been identified in the United States in the state of Washington in a person reporting travel from Wuhan City.

• Coronaviruses…

Vaping Associated Pulmonary Disease

October 25, 2019

Health Advisory


• On October 11, 2019, CDC released a Morbidity and Mortality Weekly Report (MMWR) titled, "Update- Interim Guidance for Health Care Providers Evaluating and Caring for Patients with Suspected E-cigarette, or Vaping, Product Use Associated Lung Injury – United States, October 2019." (...

Identification and Reporting of Vaping-associated Pulmonary Disease

August 23, 2019

Health Advisory


The Centers for Disease Control and Prevention (CDC) has issued a note to clinicians on cases of severe pulmonary disease among adolescents and young adults who report “vaping” or “dabbing” (i.e., vaping marijuana oils, extracts or concentrates) during the weeks and months prior to hospital admission. No specific product has been linked to the…

Widespread Cyclospora Outbreak in National Capital Region (NCR)

June 18, 2019

Health Advisory


• A significant increase in the number of reported cyclosporiasis cases have been seen in the National Capital Region (NCR) since mid-June 2019. The Fairfax County Health Department (FCHD) has identified seven confirmed cases since that time; the annual average number of reported cases is two per year (over the past five years).

• A…

Outbreak of Respiratory Illness at a Long-Term Care Facility

July 12, 2019

Health Advisory


• Fairfax County Health Department is conducting an outbreak investigation at Greenspring, a long-term care facility with assisted living and skilled nursing care, in Springfield, VA.

• Since June 30, 2019, 55 out of the 263 residents assisted living and skilled nursing care have become ill with respiratory symptoms ranging from upper…

Suspected Measles Case with Multiple Exposures in Northern VA

June 6, 2019



• A suspected measles case has been identified in Northern Virginia associated with international travel. The suspect case is known to have visited a health care facility in Fairfax County during their infectious period.

• The Fairfax County Health Department is conducting an investigation and is contacting people known to have been…

Increased Measles Activity in the United States

April 26, 2019

Health Advisory


From January 1 to April 19, 2019, 626 individual cases of measles have been confirmed in 22 states. This is the second most cases for any year since measles elimination was declared in 2000.

No confirmed cases of measles have occurred in Virginia this year. However, three cases were identified in Maryland in the last month, increasing…

2018 American Academy of Pediatrics (AAP) RED BOOK - Updated Recommendations for Pediatric Tuberculosis Testing, LTBI Treatment and Rifampin Dosing

July 5, 2018
Health advisory providing information about updated recommendations for pediatric tuberculosis testing, Latent TB Infection (LTBI) treatment and Rifampin dosing in the 2018 American Academy of Pediatrics Red Book.

Fairfax County Health Department Press Release About First Reported Human Case of West Nile Virus 

August 3, 2018
Fairfax County Health Department has identified the first reported human case of West Nile Virus disease in 2018 in the Fairfax Health District.

Increased Influenza Outbreak Activity in Long-Term Care Facilities and Recommendations for Prevention

January 19, 2018
Fairfax County Health Department is recommending that long-term care facilities take action to prevent influenza outbreaks, including exclusion of ill visitors and staff, rigorous hand hygiene and cough etiquette, vaccination, and appropriate diagnosis and case management.

Fairfax County Health Department Press Release About Risks of Unlicensed Dental Practices

March 23, 2018
Fairfax County Health Department is recommending anyone who received dental care by an unlicensed provider to see their health care provider to be tested for hepatitis B, hepatitis C and HIV, which are all spread through blood exposure.

2018-2019 Seasonal Influenza Reporting Reminder and Resources for Health Care Professionals

October 12, 2017
Fairfax County flu reporting requirements and resources for health care professionals.

Advice to Clinicians About Leptospirosis in U.S. Travelers Returning from Northern Israel

September 10, 2018
Health care providers are required to report both lab-confirmed and clinically suspect cases of leptospirosis to their local health department.

Acute Flaccid Myelitis (AFM) Update

November 20, 2018
Fairfax County Health Department issues health advisory providing an Acute Flaccid Myelitis update on November 20, 2018.

Latent Tuberculosis Infection Reporting

November 27, 2018
The Virginia Department of Health has added Latent Tuberculosis Infection (LTBI) to the Regulations for Disease Reporting and Control List. Diagnoses of LTBI are now required to be reported in the Commonwealth of Virginia.
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