The XII International AIDS Conference was held in Geneva, Switzerland from 28 June - 3 July 1998.
One focus was Roy Gulick's study on combination therapy for reducing viral load in HIV positive persons, in which AZT, 3TC and indinavir were shown to cause study participants to lower their viral load to undetectable levels.
The other was Michael Giordano's study which showed that HIV positive mothers could reduce the risk of transmission of HIV to their child by elective cesarean section, taking AZT before delivery of the child, and taking AZT intravenously during the delivery.
[1] The Gay Men's Health Crisis stated that drug marketing for Efavirenz was part of this conference and that over 100 organizations worldwide had come together to issue a "Fair Price Consensus Statement" to guide policymakers on regulating the pricing of drugs.
The issue was that Efavirenz was slated to go to market costing an average of $5000 per year and its efficacy was not proven over existing treatments, and GMHC and others were calling for expert oversight, pricing at rates which average people could afford, and greater community involvement in HIV/AIDS issues in general.