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Public health nurse reports spike in influenza, says vaccine mismatch likely contributed
Summary
Public health nurse Katie reported December communicable‑disease counts including 70 influenza cases and 13 COVID cases and told the board that the circulating H3N2 subclade is fast‑mutating and likely not well matched to the season’s vaccine, though vaccination still reduces risk of severe illness.
Katie, the public health nurse, presented the department’s communicable‑disease summary for December and read the counts: "we had 2 hepatitis b cases, 2 human granulocytic anaplasmosis cases, we had 70 influenza, 4 Lyme disease, 13 COVID, 1 latent tuberculosis case, and 1 enterovirus case." She also shared a graph comparing influenza incidence this season to last and said the recent surge now shows a downward trend.
During questions, Katie described the predominant circulating influenza strain as H3N2 (subclade K), a highly mutating strain. She told the board that vaccine formulations are chosen many months ahead and that this season’s vaccine was a poorer match for the mutating subclade, which likely contributed to the higher case numbers. She emphasized, however, that vaccination still offers protection against severe disease, particularly for children and people with compromised immune systems or older adults.
The board discussed masking and meeting protocols briefly but took no formal action on communicable‑disease policy at this meeting. The public health nurse reiterated ongoing outreach: vaccine education, website updates, camp inspection planning and distribution of Narcan (nine kits distributed to the library).
