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Both Kim and Fauci emphasize that it will probably be a "significant period of time" before the trial results lead to a vaccine that can be submitted for approval for use in the general public, if such a breakthrough occurs at all. Most licensed vaccines have an efficacy rate of at least 70%, although it's possible that an HIV vaccine with lower efficacy may gain approval, Kim says. "The efficacy threshold may be a consideration that is specific to individual countries, the nature of their HIV-AIDS epidemics and the performance characteristics of the vaccine," Kim says...
...Fakoya, a London-based clinician and senior adviser to the British nonprofit AIDS Alliance, tells TIME that a 30% efficacy rate is still very low. By comparison, studies in Africa suggest that male circumcision can cut the risk of HIV infection in men by up to 60%. Still, in a field that has been beset by a series of high-profile failures in the past 20 years - in 2007, for example, two international trials of a promising Merck vaccine in about 4,000 people were stopped early, and later analysis suggested that the vaccine may have increased people's risk...
...nerves, the unfamiliarity and the urge to impress, few people do themselves justice on the first day of a new job. When it comes to doctors starting out in emergency medicine, though, are patients' lives being put at risk? According to research from Imperial College London, the death rate among patients admitted to English hospitals on the first Wednesday in August - the day, traditionally, that newly graduated doctors take up their posts - was, on average, 6% higher than for those admitted the last Wednesday in July. An influx of new medical staff, in other words, just might be very, very...
...round of climate negotiations as the global bad guy, a holdover from eight years of barely veiled contempt for the process from former President George W. Bush's Administration. But China wasn't far behind. The world's biggest country is now its biggest carbon emitter, and its sheer rate of economic expansion - fueled chiefly by polluting coal - ensures China won't lose that spot anytime soon. While the U.S. earned the world's antipathy for refusing to sign on to the Kyoto Protocol, China, as a developing nation, had no requirements under that pact - and rarely seemed interested...
...Soaring prices for posh abodes does not mean Hong Kong's economy has escaped the recession. The unemployment rate remains high - for Hong Kong at least - at 5.4%; retail sales dropped 5.5% year-on-year in July, the most recent data available. Though average prices for non-luxury housing has rebounded 25% this year, they are still a third lower than the market's all-time high, in 1997. (See pictures of Hong Kong...