The COVID-19 pandemic highlighted how crucial testing is for disease preparedness and response, and new research from the Johns Hopkins Applied Physics Laboratory (APL) and a team of collaborators underscores that principle.

Published in the Jan. 2 edition of The Lancet Public Health, the research included simulation and analysis that suggests public-private partnerships to develop, produce and distribute COVID-19 diagnostic tests saved an estimated 1.4 million lives and prevented about 7 million patient hospitalizations in the United States during the pandemic.