NEW YORK (GenomeWeb News) – Quest Diagnostics today reported that its second-quarter revenues declined 3 percent year over year, as the diagnostics information services firm missed Wall Street estimates on the top and bottom line.

Quest had revenues of $1.82 billion for the three months ended June 30, compared to $1.88 billion for Q2 2012. It fell short of the consensus analysts' estimate of $1.84 billion.

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In Nature this week: omic analysis of permafrost microbes, hookworm genome, and more.

Biologists turn to environmental DNA sampling to determine whether elusive or invasive species are shedding DNA in a given area.

Rob Knight writes at Scientific American that microbiome studies are about to break out of the laboratory.

Harold Varmus, the director of the National Cancer Institute, has announced that he is stepping down after nearly five years.