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Study: Certain Vaccines Could Make Diseases More Deadly

Slashdot: Science - Fetched: July 27th, 2015, 9:00pm UTC

sciencehabit writes: New research suggests that vaccines that don't make their hosts totally immune to a disease and incapable of spreading it to others might have a serious downside. According to a controversial study by Professor Andrew Read these so-called "imperfect" or "leaky" vaccines could sometimes teach pathogens to become more dangerous. Sciencemag reports: "The study is controversial. It was done in chickens, and some scientists say it has little relevance for human vaccination; they worry it will reinforce doubts about the merits or safety of vaccines. It shouldn't, says lead author Andrew Read, a biologist at Pennsylvania State University, University Park: The study provides no support whatsoever for the antivaccine movement. But it does suggest that some vaccines may have to be monitored more closely, he argues, or supported with extra measures to prevent unintended consequences."pdiv class="share_submission" style="position:relative;" a class="slashpop" href="http://twitter.com/home?status=Study%3A+Certain+Vaccines+Could+Make+Diseases+More+Deadly%3A+http%3A%2F%2Fbit.ly%2F1LOxBFc"img src="http://a.fsdn.com/sd/twitter_icon_large.png"/a a class="slashpop" href="http://www.facebook.com/sharer.php?u=http%3A%2F%2Fscience.slashdot.org%2Fstory%2F15%2F07%2F27%2F2212250%2Fstudy-certain-vaccines-could-make-diseases-more-deadly%3Futm_source%3Dslashdot%26utm_medium%3Dfacebook"img src="http://a.fsdn.com/sd/facebook_icon_large.png"/a a class="nobg" href="http://plus.google.com/share?url=http://science.slashdot.org/story/15/07/27/2212250/study-certain-vaccines-could-make-diseases-more-deadly?utm_source=slashdotamp;utm_medium=googleplus" onclick="javascript:window.open(this.href,'', 'menubar=no,toolbar=no,resizable=yes,scrollbars=yes,height=600,width=600');return false;"img src="http://www.gstatic.com/images/icons/gplus-16.png" alt="Share on Google+"//a /div/ppa href="http://science.slashdot.org/story/15/07/27/2212250/study-certain-vaccines-could-make-diseases-more-deadly?utm_source=rss1.0moreanonamp;utm_medium=feed"Read more of this story/a at Slashdot./pimg src="http://feeds.feedburner.com/~r/Slashdot/slashdotScience/~4/EQnullxDzBk" height="1" width="1" alt=""/

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