Morning Briefing

Nature News reports on last week's announcement of preliminary results from a large clinical trial testing the efficacy of GlaxoSmithKline's (GSK) RTS,S malaria vaccine, writing that while media coverage of the announcement touted it as a "big breakthrough in the long campaign to create a malaria vaccine," "several leading vaccine researchers, who are critical of the unusual decision to publish partial trial data, argue that the results raise questions about whether the RTS,S/AS01 candidate vaccine can actually win approval." According to Nature, low rates of protection suggested by the results and "the frequency of serious adverse events, such as convulsions and meningitis," have added to speculation about the vaccine.