14. Use of prescription or non-prescription drugs, herbal and dietary supplements within 14 days or 5 half-lives (whichever is the longer) prior to the first dose of study medication (Part A) or the inoculation administration (Part B). [As an exception, paracetamol may be used at doses of up to 1 g/day (Part A) or 2 g/day (Part B), or ibuprofen up to 1.2 g/day (Part B). Limited use of other non-prescription medications not believed to affect subject safety or the overall results of the study, may be permitted on a case-by-case basis following approval by the sponsor.]