It's a technique widely used in other countries to slow the spread of infection. Here's how contact tracing works — and how it can help the U.S. start to get back to normal.
Here's a guide to the basics of the process, and how it could help society restart after the current wave of coronavirus cases peaks.Contact tracing is a process designed to halt the chain of transmission of an infectious pathogen — like the coronavirus — and slow community spread.
It's not perfect — a tracer might not be able to reach all the contacts, and those contacts might not all follow the guidance, says, senior adviser for COVID-19 to the Council of State and Territorial Epidemiologists."But even the leaky quarantine is effective," he says."If you get 85% of contacts to self-quarantine for 14 days, you're going to do a lot in the community to decrease transmission.
For a hair stylist who tests positive, that might involve pulling up a list of everyone who had hair appointments while that stylist was at work, as was the case with Berger. But it can get much more complicated than that. One COVID-19 patienthow he had to reach out to at least a dozen contacts after he attended a conference before everything shut down. It can mean going through your social media posts, your emails or your calendar, trying to piece together who you were close to.
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