Johnson's paper on list of influential conservation papers of 2014

While PCR-based diagnostic tests have been used in medicine for decades, they have never been used as they being used now, for broad screening of the general public, with a single positive result accepted as proof of infection without regard to clinical signs or symptoms or epidemiological exposure. Andrew Cohen had the opportunity in the environmental setting—unlike anyone in the medical profession—to observe the disaster that unfolds when these tests are used that way. His research is now informing medicine, as many scientists who usually have nothing to do with viruses or infectious disease are turning their attention to COVID-19.Read more >