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California Health Alert Network (CAHAN)  

The California Health Alert Network (CAHAN) is the State of California’s web-based information and communications system for distribution of health alerts, dissemination of treatment and prevention guidelines, coordination of disease investigation efforts, preparedness planning, and other initiatives that strengthen state and local preparedness. 
 

Other Health Advisories:

  • All Facilities Letters - An All Facilities Letter (AFL) is a letter from the Center for Health Care Quality (CHCQ), Licensing and Certification (L&C) Program to health facilities that are licensed or certified by L&C. The information contained in the AFL may include changes in requirements in healthcare, enforcement, new technologies, scope of practice, or general information that affects the health facility.
  • Healthcare-Associated Infections Program - CAHAN health advisories that were issued by the HAI Program. 
  • Center for Disease Control (CDC) - Health Alert Network (HAN)

​Healthcare Provider Health Advisory: Managing Monkeypox Virus Infection in California, Updated June 23, 2022
CDPH/Health Advisory - June 23, 2022 - The California Department of Public Health (CDPH) continues to work with local health departments (LHDs) and California healthcare providers on the ongoing monkeypox situation impacting the United States and other countries not usually endemic for monkeypox.

​Updated Case-finding Guidance: Monkeypox Outbreak—United States, 2022

CDC/Health Alert - June 14, 2022 - This Health Alert Network (HAN) Health Update serves to alert clinicians to clinical presentations of monkeypox seen so far in the United States and to provide updated and expanded case definitions intended to encourage testing for monkeypox among persons presenting for care with relevant history, signs, and symptoms.

​Health Update on Recurrence of COVID-19 Symptoms After Treatment with Paxlovid (nirmatrelvir/ritonavir)

CDPH/Health Advisory - June 7, 2022 - The California Department of Public Health is issuing this Health Alert to update public health departments, healthcare providers, and the public about the potential for “rebound” symptoms of COVID-19 after completion of a 5-day course of Paxlovid.
Recommendation for Meningococcal Vaccine (MenACWY) for Men who have Sex with Men (MSM)—Florida Meningococcal Outbreak
CDPH/Health Advisory - June 6, 2022 - Since April 2022, in response to an ongoing outbreak of serogroup C invasive meningococcal disease (IMD) in Florida, CDC has encouraged gay, bisexual, and other men who have sex with men (MSM) to: Receive quadrivalent meningococcal conjugate vaccine (MenACWY) if they live in Florida and talk with their healthcare provider about getting MenACWY if traveling to Florida.
​Healthcare Provider Monkeypox Health Advisory, May 27, 2022: Monkeypox Virus Infection in the United States and Other Non-endemic Countries

CDPH/Health Advisory - May 27, 2022 - The California Department of Public Health (CDPH) continues to work with local health departments (LHDs) and California healthcare providers on the ongoing domestic monkeypox situation. 

Monkeypox Virus Infection in the United States and Other Non-endemic Countries- Enhancing Surveillance in California as of May 20, 2022

CDPH/Health Advisory - May 20, 2022 - The California Department of Public Health (CDPH) is issuing this advisory to supplement the information contained in the Health Alert issued by the U.S. Centers for Disease Control and Prevention(CDC) to provide additional guidance to California local health jurisdictions (LHJs) and health care providers. 

Seasonal Influenza Activity is Increasing in California May 17, 2022

CDPH/Health Advisory - May 17, 2022 - ​CDPH is notifying health care providers that seasonal influenza activity is gradually increasing, with elevated activity in Central California. 

​CDPH Advises Parents and Caregivers Against Making or Feeding Homemade Infant Formula to Infants

CDPH/Health Advisory - May 13, 2022 - The impacts of the ongoing pandemic and the recent 2022 Abbott recall of certain powdered infant formula has led to periodic location- and product-based shortages of major brands of infant formula. 

Updated Recommendations for Adenovirus Testing and Reporting of Children with Acute Hepatitis of Unknown Etiology

CDC/Health Alert - May 11, 2022 - The Centers for Disease Control and Prevention (CDC) is issuing this Health Alert Network (HAN) Health Update to provide clinicians and public health authorities with updated information about an epidemiologic investigation of pediatric cases of hepatitis of unknown etiology in the United States. 



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