1a shows a static cohort model of measles immunity.
<p>Individuals can be divided into 5 mutually exclusive states: S-susceptible, NI = Naturally Infected, MCV1 = Seroconverted from MCV1 dose, MCV2 = Seroconverted from MCV2 dose, SIA = Seroconverted from SIA dose. Ɛ<sub>1</sub> = 1-vaccine failure of one dose given at less than 1 ye...
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2025
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| Summary: | <p>Individuals can be divided into 5 mutually exclusive states: S-susceptible, NI = Naturally Infected, MCV1 = Seroconverted from MCV1 dose, MCV2 = Seroconverted from MCV2 dose, SIA = Seroconverted from SIA dose. Ɛ<sub>1</sub> = 1-vaccine failure of one dose given at less than 1 year, Ɛ<sub>2</sub> = 1-vaccine failure of one dose given between 12–18 months and Ɛ<sub>3</sub> = 1-vaccine failure of one dose given at 18 months or older. V<sub>1</sub>, V<sub>2</sub> and V<sub>3</sub> are the birth-cohort coverages of MCV1, MCV2 and SIA, b is the birth rate and is the force of infection.1b shows the MCV1, MCV2 coverage and timing and target age groups of past SIAs in Kenya. 1c shows the measles case notification data.</p> |
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