Heightened Flu Activity Continues as the Season Wanes

Heightened Flu Activity Continues as the Season Wanes

The particularly harsh 2024-2025 flu season is now in its seventh week of declining cases, according to fresh Centers for Disease Control and Prevention (CDC) updates. Even so, activity has remained high for 18 weeks and counting, and the season is expected to linger on for several more weeks, says CDC. Pediatric deaths now number 168 for the season. The percentage of outpatient visits has been highest among those aged 0 to 4 years, followed …

Read More
Underlying Conditions Increase Rates of Flu Hospitalization

Underlying Conditions Increase Rates of Flu Hospitalization

Patients with underlying medical conditions (UMCs) were more likely to be hospitalized for influenza than those without UMCs, according to a retrospective study across 4 flu seasons published in The Journal of Infectious Diseases. Among 1,403 patients hospitalized with influenza at least once within a season, flu-related hospitalization was highest for patients with congestive heart failure (adjusted rate ratio, 4.2, 95% confidence interval: 3.6–4.9), followed by those with chronic obstructive pulmonary disease (COPD). Multiple UMCs …

Read More
Several Children Who Died From Flu Also Had Encephalopathy

Several Children Who Died From Flu Also Had Encephalopathy

Researchers from the Centers for Disease Control and Prevention (CDC) recently reported that 13% of U.S. children who died from the flu this season had influenza-associated encephalopathy or encephalitis (IAE). Among them, 4 had acute necrotizing encephalopathy (ANE), the most severe form, which can cause brain dysfunction and inflammation. As of February 8, CDC confirmed 68 pediatric flu deaths, including 9 with IAE. More than half of the children with fatal IAE had no underlying …

Read More
Fresh Flu Numbers Show Upward Trend — Possibly Still Short of the Seasonal Peak

Fresh Flu Numbers Show Upward Trend — Possibly Still Short of the Seasonal Peak

Flu activity surged in the United States during the final week of January with healthcare visits for respiratory virus symptoms reaching a notably high level, according to the Centers for Disease Control and Prevention (CDC). Flu test positivity rose to 31.6%, and outpatient visits for flu-like illness climbed to 7.8%, staying above the national baseline for the 10th consecutive week. Flu activity remains high or very high across most of the country. The CDC estimates …

Read More
Orders for Flu Tests in ED More Than Quadrupled From 2013-2022

Orders for Flu Tests in ED More Than Quadrupled From 2013-2022

The percentage of emergency department (ED) visits that included influenza testing increased from 2.5% in 2013 to 10.9% in 2022, according to a new data brief from the Centers for Disease Control and Prevention. ED visits for children ages 0–5 years had the highest percentage of tests ordered both in 2013 data (8.6%) and 2022 data (23.1%). Among ED visits by adults, the percentage with an influenza test increased from 1.9% to 9.1% for patients …

Read More
Flu Season Off to Slow Start in 2024-2025

Flu Season Off to Slow Start in 2024-2025

The Centers for Disease Control and Prevention (CDC) reports that respiratory virus activity remains low nationally, while also confirming the first pediatric flu death of the 2024-2025 season, recorded in the middle of October. Overall, 201 laboratory-confirmed influenza-associated hospitalizations were reported between October 1 and November 2, 2024. Weekly trend lines show an increase of 2.4% in terms of outpatient visits to healthcare providers for respiratory illnesses for the week ending November 2. Separately, the …

Read More
Rare Flu Strain Sparks Concerns For Treatment Resistance

Rare Flu Strain Sparks Concerns For Treatment Resistance

At least two human cases of “dual mutant” strains of H1N1 influenza have been detected in Connecticut and Michigan, according to a report from the Centers for Disease Control and Prevention (CDC). Genetic changes are concerning because they could reduce the effectiveness of current antiviral treatments. Mutations of H1N1 appear to have 13-fold greater resistance to the flu treatment oseltamivir—the most commonly prescribed treatment for flu. An analysis of the new H1N1 flu viruses with …

Read More
Flu Season Winds Down With Lower Than Average Visits in Early April

Flu Season Winds Down With Lower Than Average Visits in Early April

Outpatient visits for flu like illness are on a steady decline in the United States, indicating reduced activity of respiratory viruses including flu, COVID, and respiratory syncytial virus. The Centers for Disease Control and Prevention (CDC) reports the first week of April showed that visits for respiratory illness with fever plus a cough or sore throat fell to 2.8%, just below the national baseline of 2.9%. Positive labs for flu were down 7.7% since the …

Read More
Abstracts in Urgent Care – March 2024

Abstracts in Urgent Care – March 2024

Omicron versus Flu & RSV – Which is Most Dangerous for Children? Take Home Point: In this study, hospitalization rates were highest for patients with RSV than Omicron (COVID-19) in all age groups of children. Citation: Hedberg P, Abdel-Halem L, Valik J, et. al. Outcomes of Pediatric SARS-CoV-2 Omicron Infection vs Influenza and Respiratory Syncytial Virus Infections. JAMA Pediatr. 2023 Dec 26: e235734. doi: 10.1001/jamapediatrics.2023.5734 Relevance: With increasing availability for respiratory pathogen testing, it is …

Read More
Flu Can Increase Risk of Heart Attack and Stroke in Older Patients

Flu Can Increase Risk of Heart Attack and Stroke in Older Patients

The risk of atherothrombotic events in patients aged 50 and older care more than double in the 14 days following an influenza diagnosis, according to research presented in The Journal of Infectious Diseases. For those with severe cases, the risk of acute myocardial infarction and ischemic stroke increased more than 4-fold and remained high for 2 months following the flu event. Authors examined the link between influenza illness diagnosed in the primary care and hospital settings …

Read More