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In a study with about 4,000 Thai schoolchildren, a vaccine for dengue fever works well against some strains of the dengue virus. But the overall level of protection was lower than hoped for. The results suggest that a vaccine for dengue fever can be developed eventually.

With both conventions over, it's on to November. For a look at where the candidates stand, and what they think they need to accomplish in the next eight weeks, Steve Inskeep speaks to regular Morning Edition contributor Cokie Roberts.

Some 26,000 teachers and school staff in Chicago were on strike Monday after talks with the city's administration failed to reach agreement on benefits and job security issues.

GOP presidential hopeful Mitt Romney says it is possible to cut tax rates without driving the government deeper into the red, and that he can make up for the lost revenue by closing tax loopholes. But analysts have had a hard time testing Romney's claim because he hasn't offered many specifics.

With the symphony's 68th season just weeks away, it's uncertain whether the opening concert will happen.

The issues at stake in the Chicago teachers strike have already been encountered in hundreds of school systems around the country, but few, if any, have led to strikes. In Chicago, it was a combination of personalities, politics and local issues that brought the situation to a boil.

Ohio is considered a must-win state for Mitt Romney, but he's consistently trailed President Obama in polls there. On Monday, Romney campaigned in Mansfield.

A center for scientists to study what helps dogs succeed in search-and-rescue operations opens Tuesday at the University of Pennsylvania. Dr. Cynthia Otto, who created the center, and Annemarie DeAngelo, the center's training director, tell Fresh Air why they depend on their canine companions.

Annual family health insurance premiums rose about 4 percent to an average of $15,745 this year, a new survey finds. While the increase is less than the one seen last year, it exceeds both inflation and wage gains.

The Obama administration and the president's Chicago-based re-election campaign are trying to minimize the risks of offending teachers and union members by carefully navigating the tricky waters between Mayor Rahm Emanuel and the striking teachers.