TOPICS: Macrolides, azithromycin, clarithromycin, h pylori, erythromycin, 23s rrna, 50s subunit, translocation, legionella, chlamydia, mycoplasma, atypical pneumonia, strep pneumoniae, mycobacterium avium intracellulare, aids patients, cd4 count <50, babesia, bordetella, bartonella, eosinophilia, diarrhea, nausea, motility issues, maculopapular rash, cholestatic hepatitis, arrhythmia, qt prolongation, cytochrome p450, methylation, resistant