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First, Get a Placenta

So you wanna do stem cell experiments, but you don't want to go through all of the red tape involved in securing a federally approved line. Worry not. If you have the will, the science blogosphere has a way. Check out the latest dispatch in Pimm, a biotech DIY blog, for step-by-step instructions on isolating amniotic stem cells from a human placenta. Blogger Attila Csordás shows that "isolating stem cells from the placenta is not more difficult than making a steak, and with proper preparation, investment and timing you can do it even at home or in a rent lab."

The Scan

Tens of Millions Saved

The Associated Press writes that vaccines against COVID-19 saved an estimated 20 million lives in their first year.

Supersized Bacterium

NPR reports that researchers have found and characterized a bacterium that is visible to the naked eye.

Also Subvariants

Moderna says its bivalent SARS-CoV-2 vaccine leads to a strong immune response against Omicron subvariants, the Wall Street Journal reports.

Science Papers Present Gene-Edited Mouse Models of Liver Cancer, Hürthle Cell Carcinoma Analysis

In Science this week: a collection of mouse models of primary liver cancer, and more.