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Table 1 Parameters and variables

From: Malaria parasite diversity and transmission intensity affect development of parasitological immunity in a mathematical model

Parameter name

Value in simulations

Variable name

Quantity measured

n PfEMP1

300-1000

t asexual

Time remaining in current asexual cycle

n minor

20-100

N i

Number of IRBCs of type i

n MSP

4-100

X i

Density of IRBCs of type i per μL

X 50,innate

1000/μL

Y capacity,f(i)

Non-dimensional capacity to mount antibody response to variant f(i)

Ï„ innate

0.5 days

Y antibody,f(i)

Non-dimensional antibody response to variant f(i)

k fever

2 C

Y innate

Non-dimensional level of inflammatory cytokines

X 50,antibody

10/μL

Y fever

Fever in degrees C

Ï„ capacity

10 days

Y MSP,j

Adaptive immune response to MSP variant j

k antibodymin

0.01

N i+j,i

Number of IRBCs of type i with progeny expressing type i + j

k minormod

0.5

Z MS

Success probability of merozoite invasion

C innate

0.2

N gametocytes,i

Number of gametocytes of stage i

C antibody

1.5

X gametocytes,mature

Mature female gametocytes per μL

c minormod

0.3

P kill,i

Probability of clearing IRBC of type i

Ï„ abdecay

20 days

P infect

Probability of successfully infecting mosquito

Y memory

Varies up to 0.3

  

K MSP

0.02

  

K antigen

5e-9

  

n antigenswitch

7

  

k gametocyte

0.1

  

C merozoite

0.5

  

N IRBCmerozoites

16

  

T asexual

2 days

  

Z success

0.01

  

Y gam,50

0.05

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