Respiratory virus season is slowly subsiding nationwide.

The CDC reports flu cases are declining across most of the U.S., with week-to-week hospital admissions falling and low influenza A signals in wastewater; RSV and COVID-19 remain present but at lower levels overall.

The CDC's latest update says doctors are seeing fewer influenza cases after a difficult season. Influenza A is declining in most of the country while influenza B shows regional variation and can peak later in the season. Wastewater signals for influenza A, RSV, and COVID-19 are reported as low, and COVID-19 infections are generally low across the country. RSV appears to have passed peak in many regions even though levels remain elevated in some areas. Key facts: - Most flu viruses reported this week were influenza A(H3N2) and influenza B, and nearly 93% of A(H3N2) viruses since late September belong to subclade K that was not included in this season's vaccine. - About 5,640 people were admitted to hospital for flu in the past week, nearly 2,000 fewer than the previous week, according to the CDC's FluView report. - Eight additional flu deaths in children were reported, bringing the season total to 123; among children who were eligible for vaccination and whose status is known, 85% of those children who died were not fully vaccinated. - The CDC estimates at least 29 million illnesses, 360,000 hospitalizations, and 23,000 deaths from flu so far this season. - Test positivity rates reported were 11.5% for flu, 7.5% for RSV, and 2.3% for COVID-19; COVID-related emergency department visits remain low overall but are reported as likely increasing in Florida and Massachusetts. Summary: The reported decline in influenza cases and reduced wastewater signals correspond with a drop in weekly hospital admissions, though the season has already resulted in millions of illnesses and thousands of deaths. RSV and COVID-19 are lower overall but continue to appear in some regions. Undetermined at this time.