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Table 1 Comparison of intravenous vs. single mosquito bite challenge models

From: Comparison of Plasmodium berghei challenge models for the evaluation of pre-erythrocytic malaria vaccines and their effect on perceived vaccine efficacy

 

IV Challenge

Single Mosquito Bite e)

 

Average

Standard

Success

Average

Standard

Success

Mouse Strains Tested

LD(50) a)

Error

Rate b)

% Infected

Error

Rate

BALB/c (Success)

50c)

15

63%

98 d)

1.3

80%

BALB/c (Failed)

259 c)

78

N/A

75 d)

5

N/A

C57BL/6

19 c)

0

100%

100 d)

0

100%

ICR (CD-1)

18 c)

0

100%

100 d)

0

100%

  1. a) ID50's were calculated by the Reed-Muench method [46]
  2. b) Success was defined as 90% or better of the naïve animals (challenge controls) being infected
  3. c) Data obtained from 18 (BALB/c) or two (C57BL/6 and ICR (CD-1)) independent IV challenge experiments
  4. d) Data obtained from 11 (BALB/c) or two (C57BL/6 and ICR (CD-1)) independent mosquito bite challenge experiments
  5. e) Mice were challenged by a single infected female mosquito in the presence of two male mosquitoes (as described in Table 2)