Recovery of lung-stage schistosomules from unimmunized and immunized mice 6 days after the challenge infection.

For each experiment, lung-stage larvae were recovered from 2–3 mice per group, and counted on an individual mouse basis. Mean number ± SD around the mean of larvae retrieved from 2–6 repeat groups is shown. NS = not significant compared to PBS controls, as assessed using the Student 2-tailed t-test.*Immunization of mice with SG3PDH or PRX-MAP alone or emulsified with Freund's, alum, or Allison' adjuvant failed to elicit changes in number of lung-stage larvae recovered from immunized mice compared to adjuvant controls (data not shown).