Delays in contact tracing impeded early COVID-19 containment

Contact tracing programs were deployed around the globe to slow the spread of COVID-19, but these programs could not prevent the multiple waves of transmission and loss of life that have occurred since March 2020. Researchers found that a five-day delay between identifying a case and isolating contacts was the Achilles' heel of a contact tracing program in a large U.S. city.

from Top Health News -- ScienceDaily https://ift.tt/8axhbim