Resources with keywords: Influenza Virus
I Sanz-Muñoz, et al.
In this prospective observational study, immune protection against H5N1 and H7N9 avian influenza virus (AIV) was almost absent prior to vaccination. However, seasonal influenza vaccines induced a seroprotective response against the H5N1 subtype in nearly 15% of younger individuals.
P Bager, et al.
An observational study comparing the severity of COVID-19 and influenza among nearly 6 million Denmark residents finds a higher rate of hospitalizations and deaths in those infected with SARS-CoV-2—mainly among unvaccinated people, those with chronic conditions, and males—from 2022 to 2024.
Bird flu has been found in domestic and wild cats in several states. At this time it is known that H5N1 can be transmitted to cats and dogs when they eat products from infected poultry or cattle (e.g., unpasteurized milk, uncooked meat, or unpasteurized eggs) that have not undergone a processing step that is capable of inactivating the virus, such as pasteurizing, cooking or canning.
This dashboard provides data about COVID-19, flu, RSV and mpox virus levels in wastewater.
Outside the United States, more than 950 cases of H5N1 bird flu have been reported to the World Health Organization; about half of those have resulted in death.

poster (English and Spanish) designed to help farm workers undertand the risks of avian influenza and how to protect themselves and their families
This site includes monitoring of Persons Exposed to Infected Animals
In this week’s update, CDC shares information about ongoing serology studies in Colorado and Michigan, genetic characterization of viruses from recent human cases in Colorado poultry workers, and how CDC’s National Syndromic Surveillance Program is supporting this response.