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Add transparent points for themes commonly discussed in seasonal influenza education: age, pregnancy (if applicable), chronic lung, heart, kidney, or liver disease, diabetes, immunosuppression, neurologic conditions, obesity, smoking, long-term care residence, and some occupational exposure. This is an educational index—not CDC FLUEDD, not a calibrated probability of infection, and not vaccine or antiviral prescribing advice. Pair results with other medical calculators and your clinician.
Last updated: April 20, 2026
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Moderate influenza risk-factor burden (educational)
7
Total points (BMI 40+ replaces the 30–39.9 obesity row in the tally)
Age
5
Pregnancy
0
Lung
0
Heart
0
Diabetes
2
Immune / cancer Rx
0
Kidney
0
Liver
0
Neuro
0
Obesity
0
Smoking
0
LTC resident
0
HCW / public
0
Moderate educational burden: a mix of age, medical, body-weight, behavioral, or setting factors adds context for prevention conversations. Low scores do not mean zero risk—healthy people can still develop severe influenza.
Trouble breathing, chest pain, confusion, persistent high fever, or dehydration in pregnancy or chronic illness may be emergencies—seek urgent in-person care. This page does not tell you whether you need antivirals, tests, or vaccines; follow local guidance and your clinician.
Mirrors common teaching lists for people discussed as higher priority for prevention and early in-person evaluation when influenza-like illness appears.
Receives a larger illustrative weight because host defense and inflammatory balance change management discussions in specialty education.
BMI 30–39.9 and 40+ use separate bands; severe obesity replaces the moderate obesity points if both were selected. Smoking adds a small pulmonary vulnerability point.
Outbreak settings and frailty clusters justify a higher educational weight on this checklist even when individual chronic conditions are not all selected.
A modest point reflects increased acquisition risk in teaching models; it does not replace facility infection-prevention policies or occupational health programs.
Very young children receive higher age points on this educational scale because of teaching emphasis on hydration and lower respiratory complications—still not a substitute for pediatric triage.
Default demo: age 65+ (5 points) with diabetes (2 points).
Total score
7
Band on this page
Moderate (educational)
On this page: total points 0–6 → lower burden; 7–14 → moderate; 15 or more → higher burden. Cutoffs are arbitrary for learning—not CDC thresholds.
Points are summed from each checklist domain. The model prioritizes immunosuppression or active cancer therapy, extremes of age, pregnancy, long-term care residence, and major organ-system chronic disease because those themes appear repeatedly in influenza prevention education. Severe obesity replaces the moderate obesity row if both are selected by mistake.
Age: 0–4 → 4 pts; 5–17 → 1; 18–49 → 0; 50–64 → 2; 65+ → 5
Pregnancy → 3; each major chronic category → 1–4 pts; BMI 30–39.9 → 1; BMI 40+ → 3
Smoking → 1; long-term care → 4; healthcare / dense public contact → 1
Exact weights are chosen for transparency in classrooms—not to match any one published regression model.
For pneumonia severity teaching after diagnosis, see our CURB-65 calculator.
Get a Custom Calculator for Your PlatformAge 65+ (5), not pregnant (0), no lung/heart/immune/kidney/liver/neuro conditions (0), diabetes yes (2), no obesity bands (0), not smoking (0), not in long-term care (0), not healthcare worker (0). Total = 7 → moderate on this educational scale—a conversation starter for vaccination, sick-day planning, and when to call a clinician for worsening symptoms, not a diagnosis.
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