Notification from the Los Angeles County Department of Public Health
Notification from the Los Angeles County Department of Public Health
LAC DPH Health Update:
Cluster of Locally Acquired Cases of Dengue in Los Angeles County
September 19, 2024
This message is intended for emergency medicine, primary care, urgent care, internal medicine, and infectious disease providers.
Please distribute as appropriate.
Key Messages
  • Two additional cases of locally acquired dengue have been identified in Baldwin Park.
  • Healthcare providers should consider dengue in any patient with acute febrile illness and consistent symptoms, regardless of travel history, and order appropriate testing.
  • Providers should immediately report any suspected cases of locally acquired dengue to Public Health by phone.
  • Patients should be routinely educated about the importance mosquito bite prevention at home and during travel.
Situation
Los Angeles County Department of Public Health (LAC DPH) has identified two additional cases of locally acquired dengue in residents of the City of Baldwin Park. LAC DPH initially confirmed a case on September 9, 2024.
The two additional cases have no history of domestic or international travel prior to their symptoms. Both cases report mosquito bites at home. All three of these locally acquired cases of dengue reside in the same neighborhood and fell ill in August.
Cases of locally acquired dengue were previously confirmed by Long Beach and Pasadena in fall 2023.
This is an unprecedented number of locally acquired cases for a region where dengue has not previously been known to be transmitted by mosquitoes.
LAC DPH urges healthcare providers to be vigilant for dengue, order appropriate tests, and discuss mosquito prevention activities with patients and travelers. Read the September 9 Health Alert below for more details, including the clinical presentation, diagnosis, and reporting of dengue, and to view the actions requested of providers.
Click here to read the 9/9/24 Health Alert: Locally Acquired Case of Dengue
To view the PDF version click here or copy and past this link into your browser: http://publichealth.lacounty.gov/eprd/lahan/alerts/LAHANAlertDengue090924.pdf
To view this and other communications or to sign-up to receive LAHANs, please visit http://publichealth.lacounty.gov/lahan
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