Searching for a better mosquito repellent

sea-maid submitted, created time 5 months 3 weeks (www.pnas.org)

Most people in hot places--or even just hot weather--are troubled by mosquitos. What is an annoyance in some parts of the world, however, can be fatal in others. In this stuty, the scientists point out that it is necessary to search for more effective repellents, one of which is introduced in this article, lasting a record 85 days!

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Estimation of the number of virus particles transmitted by an insect vector

richard submitted, created time 1 year 3 weeks (www.pnas.org)

Plant viruses are submitted to narrow population bottlenecks both during infection of their hosts and during horizontal transmission between host individuals. The size of bottlenecks exerted on virus populations during plant invasion has been estimated in a few pathosystems but is not addressed yet for horizontal transmission.

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