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- W4362598000 abstract "A compartmental deterministic model that allows (1) immunity from two stages of infection and carriage, and (2) disease induced death, is used in studying the dynamics of meningitis epidemic process in a closed population. It allows for difference in the transmission rate of infection to a susceptible by a carrier and an infective. It is generalized to allow a proportion ({phi}) of those susceptibles infected to progress directly to infectives in stage I. Both models are used in this study. The threshold conditions for the spread of carrier and infectives in stage I are derived for the two models. Sensitivity analysis is performed on the reproductive number derived from the next generation matrix. The case-carrier ratio profile for various parameters and threshold values are shown. So also are the graphs of the total number ever infected as influenced by {epsilon} and {phi}. The infection transmission rate (b{eta}), the odds in favor of a carrier, over an infective, in transmitting an infection to a susceptible ({epsilon}) and the carrier conversion rate ({phi}) to an infective in stage I, are identified as key parameters that should be subject of attention for any control intervention strategy. The case-carrier ratio profiles provide evidence of a critical case-carrier ratio attained before the number of reported cases grows to an epidemic level. They also provide visual evidence of epidemiological context, in this case, epidemic incidence (in later part of dry season) and endemic incidence (during rainy season). Results from total proportion ever infected suggest that the model, in which {phi}=0 obtained, can adequately represent, in essence, the generalized model for this study." @default.
- W4362598000 created "2023-04-06" @default.
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- W4362598000 date "2023-03-31" @default.
- W4362598000 modified "2023-10-14" @default.
- W4362598000 title "A study of a deterministic model for meningitis epidemic" @default.
- W4362598000 doi "https://doi.org/10.48550/arxiv.2304.00148" @default.
- W4362598000 hasPublicationYear "2023" @default.
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