Research Article

Optimal Control Analysis of Treatment Strategies of the Dynamics of Cholera

Table 2

Description of parameters of the model, their values, units, and references (source).

ParameterSymbolValueUnitSource

Human recruitment rate9.49Estimated
Non-cholera human death rate0.01177day/1000Calculated
Rate of ingesting Vibrio cholerae bacteria from contaminated food and water consumed by the human population0.5[11]
Rate of getting Vibrio cholerae bacteria through human-to-human interactions0.03[11]
Rate of recovery of hygiene conscious individuals0.38[11]
Hygiene consciousness of individuals0.604Estimated
Rate of Vibrio cholerae decrease0.033[12]
Rate at which infected individuals increase10Cells/ml/day[13]
Vibrio cholerae bacteria in the environment
 Rate of generating0.073[7]
Vibrio cholerae bacteria in the environment
 Rate of freedom from Vibrio cholerae by the hygiene conscious individuals0.65Estimated
Concentration of cholera pathogen that yields 50% chance of individual developing cholera diseaseCells/ml[14]
Progression of recovery of treated individuals to untreated Vibrio cholerae carriers0.08Estimated
Rate of interruption of treatment0.2[15]
Recovery rate of untreated Vibrio cholerae carriers0.8Estimated
Recovery of treated cholera patients0.63Estimated
Disease induced death rate for individuals in class0.105Estimated
Disease induced death rate for individuals in class0.1Estimated
Disease induced death rate for individuals in classEstimated
Rate of movement of the infected class0.24Estimated
Rate of vaccine0.3[16]
Rate of waning out of the vaccine induced immunity0.5[16]
Rate at which the vaccine reduces infection0.2[16]
Cholera awareness programme0.66Estimated
Rate of exposure to infection0.23Estimated
The fraction 0.000599DimensionlessCalculated
A fraction of early infected individuals0-1Dimensionless[15]