We haven’t focused on treating  the ones that cause colds, and though scientists began developing treatments for SARS and MERS, the epidemics ended before those  treatments completed clinical trials.
Os cientistas não se dedicaram aos vírus que causam resfriados e, embora tenham começado a desenvolver tratamentos para SARS e MERS, as epidemias terminaram antes que os testes clínicos se completassem.