The most up-to-date influenza information from Canada is available in Canada’s weekly FluWatch report. The most up-to-date influenza information from Europe is available from WHO/Europe and the European Centre for Disease Prevention and Control. The data presented are preliminary and may change as more data are received and processed.Īdditional influenza surveillance information from participating WHO member nations is available throughįluNet and the Global Epidemiology Reports.Īustralia, China, Japan, the United Kingdom, and the United States (CDC in Atlanta, Georgia) Among the 1,875 PIC deaths reported for this week, 958 had COVID-19 listed as an underlying or contributing cause of death on the death certificate, and four listed influenza, indicating that current PIC mortality is due primarily to COVID-19 and not influenza. This percentage is above the epidemic threshold of 5.7% for this week.
CURRENT WEEK NUMBER 2015 UPGRADE
On June 6, 2022, the National Vital Statistics System (NVSS) cause of death coding system began a system-wide upgrade, which required a temporary suspension of routine NVSS surveillance reporting. The upgrade required all 2022 death records to be reprocessed into the system. As routine NVSS surveillance reporting resumes, users may temporarily observe lower death counts for prior weeks in 2022 as the backlog is reprocessed and reloaded into the system.īased on NCHS mortality surveillance data available on July 21, 2022, 9.5% of the deaths that occurred during the week ending J(week 28), were due to pneumonia, influenza, and/or COVID-19 (PIC). Mortality Surveillance National Center for Health Statistics (NCHS) Mortality Surveillance
CURRENT WEEK NUMBER 2015 FULL
View Chart Data (current season only) | View Full Screen
CURRENT WEEK NUMBER 2015 PLUS
* Effective Octo(week 40), the ILI definition (fever plus cough or sore throat) no longer includes “without a known cause other than influenza.” Multiple respiratory viruses are co-circulating, and the relative contribution of influenza virus infection to ILI varies by location. Nationwide during week 28, 1.6% of patient visits reported through ILINet were due to respiratory illness that included fever plus a cough or sore throat, also referred to as ILI. Information about other respiratory virus activity can be found on CDC’s National Respiratory and Enteric Virus Surveillance System (NREVSS) website. CDC is tracking the COVID-19 pandemic in a weekly publication called COVID Data Tracker Weekly Review. Therefore, it is important to evaluate syndromic surveillance data, including that from ILINet, in the context of other sources of surveillance data to obtain a complete and accurate picture of influenza, SARS-CoV-2, and other respiratory virus activity. Due to the COVID-19 pandemic, health care-seeking behaviors have changed, and people may be accessing the health care system in alternative settings not captured as a part of ILINet or at a different point in their illness than they might have before the pandemic. Outpatient Influenza-like Illness Surveillance Network (ILINet) monitors outpatient visits for influenza-like illness, not laboratory-confirmed influenza, and will therefore capture respiratory illness visits due to infection with any pathogen that can present with similar symptoms, including influenza, SARS-CoV-2, and RSV.
Outpatient Respiratory Illness Surveillance results of tests from Public Health Laboratories Viruses known to be associated with recent live attenuated influenza vaccine (LAIV) receipt or found upon further testing to be a vaccine virus are not included as they are not circulating influenza viruses. Data from public health laboratories are used to monitor the proportion of circulating viruses that belong to each influenza subtype/lineage.
The results of tests performed by public health laboratories nationwide are summarized below.