Limited production capacity and delays in vaccine development are
major obstacles to vaccination programs that are designed to
mitigate a pandemic influenza. In order to evaluate and compare the
impact of various vaccination strategies during a pandemic influenza, we developed an age/risk-structured model of influenza
transmission, and parameterized it with epidemiological data from
the 2009 H1N1 influenza A pandemic. Our model predicts that the
impact of vaccination would be considerably diminished by delays in
vaccination and staggered vaccine supply. Nonetheless, prioritizing limited H1N1 vaccine to
individuals with a high risk of complications, followed by
school-age children, and then preschool-age children, would minimize
an overall attack rate as well as hospitalizations and
deaths. This vaccination scheme would maximize the benefits of
vaccination by protecting the high-risk people directly, and
generating indirect protection by vaccinating children who are most
likely to transmit the disease.
Citation: Eunha Shim. Prioritization of delayed vaccination for pandemic influenza[J]. Mathematical Biosciences and Engineering, 2011, 8(1): 95-112. doi: 10.3934/mbe.2011.8.95
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Abstract
Limited production capacity and delays in vaccine development are
major obstacles to vaccination programs that are designed to
mitigate a pandemic influenza. In order to evaluate and compare the
impact of various vaccination strategies during a pandemic influenza, we developed an age/risk-structured model of influenza
transmission, and parameterized it with epidemiological data from
the 2009 H1N1 influenza A pandemic. Our model predicts that the
impact of vaccination would be considerably diminished by delays in
vaccination and staggered vaccine supply. Nonetheless, prioritizing limited H1N1 vaccine to
individuals with a high risk of complications, followed by
school-age children, and then preschool-age children, would minimize
an overall attack rate as well as hospitalizations and
deaths. This vaccination scheme would maximize the benefits of
vaccination by protecting the high-risk people directly, and
generating indirect protection by vaccinating children who are most
likely to transmit the disease.