Mouse Infection A model for the spread of an infectious dis- ease among mice is NP = rN - ar(a + b + v) dt b + y, where N is the size of the population of mice, a is the mortal- ity rate due to infection, b is the mortality rate due to natural causes for infected mice, B is a transmission coefficient for the rate that infected mice infect susceptible mice, v is the rate the mice recover from infection, and y is the rate that mice lose immunity. Show that the solution to this equation, with the initial condition N(0) =(a + b + v)/B, can be written as (a + b + v), 2{(R – a)e" + a], BR N(t) = where R = a - (1+, b + y

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
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Chapter1: The Human Body: An Orientation
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Mouse Infection A model for the spread of an infectious dis-
ease among mice is
NP
= rN -
ar(a + b + v)
dt
b + y,
where N is the size of the population of mice, a is the mortal-
ity rate due to infection, b is the mortality rate due to natural
causes for infected mice, B is a transmission coefficient for the
rate that infected mice infect susceptible mice, v is the rate the
mice recover from infection, and y is the rate that mice lose
immunity. Show that the solution to this equation, with the
initial condition N(0) =(a + b + v)/B, can be written as
(a + b + v),
2{(R – a)e" + a],
BR
N(t) =
where
R = a - (1+,
b + y
Transcribed Image Text:Mouse Infection A model for the spread of an infectious dis- ease among mice is NP = rN - ar(a + b + v) dt b + y, where N is the size of the population of mice, a is the mortal- ity rate due to infection, b is the mortality rate due to natural causes for infected mice, B is a transmission coefficient for the rate that infected mice infect susceptible mice, v is the rate the mice recover from infection, and y is the rate that mice lose immunity. Show that the solution to this equation, with the initial condition N(0) =(a + b + v)/B, can be written as (a + b + v), 2{(R – a)e" + a], BR N(t) = where R = a - (1+, b + y
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