Early West Coast Flu Surge: California Test Positivity 9.65% vs 1% Norm

Influenza activity on the US West Coast is unusually high for early October, with California's test positivity at 9.65% versus a typical 1% baseline, amid a mutated H1N1 strain. The early onset suggests a potentially severe season, though the full trajectory remains uncertain. This elevates public-health risk and could strain healthcare systems earlier than usual.

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