Pernicious anemia<span> is a decrease in red blood cells that occurs when the intestines cannot properly absorb vitamin B12.</span>
Answer:
False
Explanation:
I forgot why sorry though
Deformations of collagen elasticity, leading to Scurvy
A web of causation model can vaccines and improved sanitation cause the death rate to decrease.
<h3>What web of causation model?</h3>
A web of causation model is a model designed to relate the causes and effects of a disease, exploring multiple causative factors and giving each same attention for such chronic disease.
For example, a web of causation model for a person who contracted Corona virus would study the factors involved relating to how such person may have contracted this disease, any health factors that make the person prone to contracting the virus etc.
Thus, Web of causation model is an epidemiological model used to organize research so as to identify determinant factors and provide relevant interventions and cure to a chronic disease.
To learn more about epidemiological transition click here;
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