Table 1.
Events | Timing | Treatments |
---|---|---|
Pre-immunization (intraperitoneal) | 6 and 13 days prior to intratracheal challenge | Pre-immunization with alum alone or with alum plus MP extracts |
Intratracheal challenge | Day 0 | Intratracheal challenge with MP extracts |
BAL analysis | 0, 8, 24, 48, 96, 168, and 336 h after intratracheal challenge | |
Sampling for lung pathology | 0, 8, 24, 48, 96, 168, and 336 h after intratracheal challenge |
alum: a Th2 stimulating adjuvant, MP extract: Mycoplasma pneumoniae extract, derived from centrifugation of sonicated particle of alive Mycoplasma pneumoniae, described in the “Preparation of MP extracts” section above mentioned in the “Material and methods” section.