August 24, 2020
Rose
The concept of contact tracing isn't new with COVID-19. It's been used successfully for sexually transmitted diseases, tuberculosis, and smallpox, among other conditions.
from WebMD Health https://ift.tt/3jby4WO
August 24, 2020
Rose
Healthy Living, WebMD Health
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from WebMD Health https://ift.tt/3jby4WO
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