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Next week (Tuesday, May 6th) the CDC will hold their second COCA Call Webinar of 2025 (see March COCA Call on Murine Typhus), and their first COCA call update on H5N1 since July of last year.These presentations are often technical, and are of greatest interest to clinicians and healthcare providers, but are also archived and made available to the general public.
Details on next week's COCA call follow.
Clinician Update on Human Cases of H5N1 and Influenza A Virus Surveillance
At a glance
During this COCA Call, presenters will give updates on the current situation with human cases of influenza A(H5) and CDC's surveillance and monitoring efforts for influenza A virus infections among people in the United States.
Webinar
Tuesday, May 6, 2025
2:00 - 3:00 PM ET
How to Join
Please click this link to join the webinar.
Webinar ID: 161 022 6268
Passcode: 340155
One tap mobile : +16692545252,,1610226268#,,,,*340155#
Telephone: +1 669 254 5252 or +1 646 828 7666
International numbers available here.
Overview
The Centers for Disease Control and Prevention (CDC) continues to emphasize the importance of ongoing surveillance to detect human infections with highly pathogenic avian influenza A(H5N1) virus or H5N1 bird flu. From 2022 to mid-April 2025, 71 human cases of influenza A(H5) were identified in the United States, including 70 occurring during 2024 and 2025. Most human cases reported unprotected workplace exposures, such as contact with avian influenza A(H5N1) virus-infected dairy cows or poultry without using recommended personal protective equipment; however, two cases involved exposure to backyard poultry, and the source of exposures in three cases could not be determined. Given the pandemic risk posed by novel influenza A viruses, including avian influenza A(H5N1) viruses, healthcare providers should remain alert to the possibility of human infections with novel influenza A viruses, particularly if a patient has relevant exposure history.
During this COCA Call, presenters will give updates on the current situation with human cases of influenza A(H5) in the United States and CDC's surveillance and monitoring efforts for influenza A virus infections among people in the United States. The discussion will emphasize what is expected of state and local partners and clinicians during the summer months when seasonal influenza virus circulation is typically low.
Presenters
Tim Uyeki, MD, MPH, MPP
Chief Medical Officer
Influenza Division
National Center for Immunization and Respiratory Diseases
Centers for Disease Control and Prevention
Alicia Budd, MPH
Team Lead, National Surveillance and Outbreak Response Team
Epidemiology and Prevention Branch
Influenza Division
National Center for Immunization and Respiratory Diseases
Centers for Disease Control and Prevention
Call Objectives
COCA Call Objectives
At the conclusion of the session, the participant will be able to accomplish the following:Additional Resources
- Cite background information on the topic covered during the presentation.
- Discuss CDC's role in the topic covered during the presentation.
- Describe the topic's implications for clinicians.
- Discuss concerns and/or issues related to preparedness for and/or response to urgent public health threats.
- Promote health improvement, wellness, and disease prevention in cooperation with patients, communities, at-risk populations, and other members of an interprofessional team of healthcare providers.
- Activity-specific ObjectivesProvide an update on human infections with avian influenza A(H5N1) viruses in the United States.
- Discuss CDC's surveillance and monitoring efforts for avian influenza A(H5N1) virus infections in people.
- Outline the public health implications of avian influenza A(H5N1) virus in animals and the importance of early detection of human infections and control measures.
- Describe expectations for summertime influenza surveillance activities in the United States, including collecting and testing recommended clinical specimens for influenza viruses, subtyping influenza A positive specimens, and submitting influenza A(H5) positive specimens to CDC.
H5 Bird Flu: Current Situation | Bird Flu | CDC
How CDC is monitoring influenza data among people to better understand the current avian influenza A (H5N1) situation | Bird Flu | CDC
Signs and Symptoms of Bird Flu in People | Bird Flu | CDC
People at Increased Risk for Bird Flu | Bird Flu | CDC
Information for Specific Groups | Bird Flu | CDC
Prevention and Antiviral Treatment of Avian Influenza A Viruses in People | Bird Flu | CDC
Highly Pathogenic Avian Influenza A(H5N1) Virus: Interim Recommendations for Prevention, Monitoring, and Public Health Investigations | Bird Flu | CDC
Clinician Brief: Evaluating and Managing Patients Exposed to Animals or Persons Infected with Novel Influenza A Viruses of Public Health Concern | Bird Flu | CDC
Health Alert Network (HAN) - 00520 | Accelerated Subtyping of Influenza A in Hospitalized Patients
2024-2025 Influenza Season: Surveillance For Novel Influenza A and Seasonal Influenza Viruses | Bird Flu | CDC
