Vivvo CMS 4.1 PRI: Public Radio International http://www.pri.org/ ©2010 Spoonlabs d.o.o. PRI: Public Radio International http://www.pri.org/files.php?file=rss_682409203.gif http://www.pri.org/ New vaccine provides nearly 50 percent protection from malaria; work still needed http://www.pri.org/stories/world/africa/new-vaccine-provides-nearly-50-percent-protection-from-malaria-work-still-needed-6538.html Africa Thu, 20 Oct 2011 11:25:00 -0500 A new vaccine is providing protection against malaria to nearly 50 percent of those who get it, possibly saving millions of lives. But that leaves some doctors with concerns. PRI: Public Radio International