Define
A warning designed to change a health behavior (stop, screen, stay home), not to sell a brand.
Mechanism
Fear with a next step. The threat is specific. The action is doable today. Fear without an action is cruelty.
Verdict
The risk is real and the action is clear. Official or civic voices help.
Don't
We are selling a commercial product with borrowed panic. That is a different, usually worse, decision.
Rights-cleared examples
A book mark would be better!" poster
A lifelong job-the constant protection of their health-The Cook County Public Health Unit" poster
Abstinence more powerful than penicillin" poster
Be wise Don't play with firecrackers
Be wise Don't play with firecrackers" poster
Both of these men had syphilis" poster
Cancer Danger Signals" poster
Cover Coughs, Cover Sneezes!" poster
Curb service" poster
Diphtheria strikes unprotected children" poster
Don't Mix 'Em 1937" poster
Don't fight cancer alone" poster