Editing Public Health (section)

== <span style="color: #FFFFFF;">Applying</span> ==
'''Modeling 'The Power of Prevention' (ROI):'''
<syntaxhighlight lang="python">
def calculate_prevention_roi(cost_per_vaccine, cost_of_treatment, infection_rate):
    """
    Shows why Governments invest in Public Health.
    """
    pop_size = 10000
    
    # Cost to vaccinate everyone
    prevention_cost = pop_size * cost_per_vaccine
    
    # Cost if we do nothing
    expected_cases = pop_size * infection_rate
    treatment_cost = expected_cases * cost_of_treatment
    
    return {
        "Cost to Prevent": f"${prevention_cost:,}",
        "Cost to Treat": f"${treatment_cost:,}",
        "Savings": f"${treatment_cost - prevention_cost:,}"
    }

# Disease: $20 vaccine, $5000 treatment, 10% get sick
print(calculate_prevention_roi(20, 5000, 0.10))
# This is why 'Free Vaccines' are actually a massive 
# profit for the country in the long run.
</syntaxhighlight>

; Public Health Successes
: '''Clean Water (Chlorination)''' → Reduced infant mortality by 75% in the early 1900s.
: '''Tobacco Control''' → Halving the smoking rate through taxes, bans, and education.
: '''Seatbelts and Airbags''' → Turning "Car accidents" from a leading cause of death into a manageable risk.
: '''Fluoridation''' → A "Passive" intervention that reduced tooth decay by 40% across entire cities.
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