Changes in SARS-CoV-2 Positivity Rate in Outpatients in Seattle and Washington State, March 1-April 16, 2020

JAMA. 2020 Jun 9;323(22):2334-2336. doi: 10.1001/jama.2020.8097.

Abstract

This population epidemiology study characterizes trends in polymerase chain reaction (PCR) test positivity for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Washington State and the Seattle area between March 1 and April 16, 2020, before and after statewide physical distancing guidelines and stay-at-home orders.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Ambulatory Care Facilities
  • Betacoronavirus / isolation & purification*
  • COVID-19
  • COVID-19 Testing
  • Child
  • Child, Preschool
  • Clinical Laboratory Techniques
  • Communicable Disease Control
  • Coronavirus Infections / diagnosis
  • Coronavirus Infections / epidemiology*
  • Emergency Service, Hospital
  • Female
  • Humans
  • Infant
  • Male
  • Middle Aged
  • Outpatients
  • Pandemics
  • Pneumonia, Viral / diagnosis
  • Pneumonia, Viral / epidemiology*
  • SARS-CoV-2
  • Washington / epidemiology
  • Young Adult