Question

principal factors that influence the effectiveness of vaccine in the control of infectious disease​

Answer 1

Answer:

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Explanation:

These include intrinsic host factors (such as age, sex, genetics, and comorbidities), perinatal factors (such as gestational age, birth weight, feeding method, and maternal factors), and extrinsic factors (such as preexisting immunity, microbiota, infections, and antibiotics).13-Mar-2019