What happened?
The CDC’s Week 38 surveillance (week ending 2026-09-26) reports low but increasing seasonal influenza activity nationally. Clinical labs found 3.4% of respiratory specimens positive for influenza; public health labs detected only influenza A in the week, predominantly A(H1N1)pdm09 among subtyped viruses. Hospitalisation and mortality remain low.
Why does it matter?
Routine virologic, outpatient, emergency department and hospital surveillance combine to track trends. The rise in test positivity and continued A(H1N1)pdm09 detection indicate early season activity; multiple respiratory viruses are co-circulating so influenza’s share of syndromic illness varies by location.
How to interpret the evidence
Data reflect the US population and CDC laboratory networks; counts are preliminary and may change as reports arrive. Findings show current patterns rather than forecasts. Applicability to EU/Malta is limited — similar surveillance is needed locally to assess timing and dominant strains; availability of specific vaccines or products in Malta is not addressed here.
What remains uncertain?
A low national level and early rise do not imply severe upcoming seasons or predict local impact. This report does not assess vaccine effectiveness, recommend clinical actions, or declare widespread novel influenza transmission; no new confirmed novel influenza infections were reported for this week.
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This summary was prepared with AI assistance and checked automatically against the linked primary source. It has not been individually reviewed by a clinician.