Which of the following scenarios is the least likely to result in a decrease in disease prevalence in a specific population? (assume that there is no migration into or from the population)   a. Emergence of a new curative treatment, while incidence remains the same as before   b. A more relaxed case definition for the disease, while survival and cure rates remain the same as before   c. A worsening of disease reporting standards leading to underreporting of cases, while survival and cure rates remains the same as before   d. Higher mortality from the disease, while incidence remains the same as before

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Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.