Do you remember Sherlock? The CRISPR-based platform was heralded in Science as a new generation of low cost diagnostic tests with single-base specificity, easy to use even when oubreaks occur in remote areas. The good news is that Feng Zhang and colleagues are sharing a research protocol, applicable to purified RNA, that may inform the development of a Sherlock test for COVID-19. For more information, visit the McGovern Institute website.