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On a conference call following the release of the earnings, the firm's CEO guided for lower 2018 ePlex placements than had been expected by analysts.

The company said 571,000 people were screened for colon cancer with its noninvasive Cologuard test in 2017.

Luminex said that its MDx sample-to-answer portfolio grew 31 percent over the prior-year quarter and generated $12.9 million.

Overall, revenues were up 8 percent. In the diagnostics segment, molecular product sales were driven primarily by continued strength across Aptima women's health products.

Within the centralized and point-of-care solutions business, integrated serum work area solutions drove growth with immunodiagnostics sales rising 13 percent.

Qiagen posted revenues of $396.9 million in Q4 compared to $366.5 million a year ago and beat analysts' estimates on both the top and bottom lines.

The company's full year revenues increased 14 percent over 2016, to $20.92 billion.

The company reported Q4 and full-year 2017 revenues of $778.0 million and $2.75 billion, respectively. 

Revenues in PerkinElmer's diagnostics business rose 23 percent in Q4, thanks largely to its acquisition of autoimmune diagnostic testing firm Euroimmun.

Among the firms reporting, BGI talked about plans to cut down the time and cost of its WGS service, and Invitae's CEO made a surprising proclamation about genetic testing.

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President-elect Joe Biden has nominated Eric Lander to serve as director of the Office of Science and Technology Policy, the Associated Press says.

Nature News writes that scientists are trying to figure out how to name the new strains of SARS-CoV-2 that are emerging.

The New York Times reports that researchers are studying identical twins who had COVID-19 to understand the influence of genetics on disease severity.

In PNAS this week: epistasis affecting cystic fibrosis, Tiger rattlesnake genome gives venom insight, and more.