Ace the Certified in Public Health (CPH) Exam 2025 – Launch Your Health Hero Journey!

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What is the most significant reason for reduced mortality during the initial stage of demographic transition?

Increased use of antibiotics

Improved sanitation

The most significant reason for reduced mortality during the initial stage of demographic transition is improved sanitation. During this phase, populations typically experience a decline in infectious diseases, which is largely attributed to better sanitation practices. Improved sanitation reduces the prevalence of waterborne and foodborne diseases, as well as vector-borne illnesses that thrive in unsanitary conditions. This leads to healthier living environments and decreases mortality rates among vulnerable populations, particularly infants and children.

While increased use of antibiotics, immunization, and screening for infectious diseases also contribute to improved health outcomes, they typically play a more pronounced role in subsequent stages of demographic transition. Improved sanitation and public health measures form the foundational elements that address the root causes of many infectious diseases, making it the most crucial factor during this initial phase.

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Increased immunization

Screening for common infectious diseases

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