As cases skyrocket and more questions arise about the high rate of false negatives returned by rapid testing in COVID-19 cases, a simple, new diagnostic test offers far greater accuracy. Researchers around the globe have found that artificial intelligence can detect coronavirus infections in recorded forced coughs, with nearly 100% accuracy in asymptomatic or presymptomatic cases, making it an ideal quick screening test. Forced cough or voice analysis shows strong results in other conditions, too, including pulmonary hypertension and, surprisingly, Alzheimer's disease.