https://www.reuters.com/article/us-health-coronavirus-wearables-tracing/elderly-home-turns-to-wearables-for-contact-tracing-sidestepping-apple-google-limits-idUSKBN22V2T0

When a senior living facility in Amarillo, Texas suspected a nurse may have caught the novel coronavirus this month, it had a list within five minutes of staff and residents the nurse could have infected.