“Bacterial Litmus Test” Provides Inexpensive Measurement of Micronutrients

Researchers have developed a diagnostic blood test for micronutrient deficiencies, or “a bacterial litmus test,” that measures levels of zinc in the blood using genetically modified bacteria. This breakthrough has broad-reaching implications—it could enable nutritional epidemiologists and nongovernmental organizations to use simple and portable technology to conduct community-level testing in remote regions where nutritional deficiencies are common.

September 2015