Researchers have come up with a new test that can determine whether the mother and baby are going to have different blood types or not. Published on bmj.com, the study further says that the test may substantially reduce unnecessary treatment. The baby’s blood group is predicted by typing its DNA in RhD negative pregnant women’s plasma.

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Japan’s Eisai and its diagnostic subsidiary, Sanko Junyaku, have launched the Lumipulse KL-6 and Lumipulse Presto KL-6 Eisai test kits, which detect KL-6, a marker of interstitial pneumonia. These diagnostic systems use automated chemiluminescence enzyme immunoassay system marketed by Fujirebio. In 2006, the three companies entered into an agreement to develop new KL-6 test kits.