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MMWR+Morb+Mortal+Wkly+Rep 2020 ; 69 (14): 419-421 Nephropedia Template TP
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Rapid Sentinel Surveillance for COVID-19 - Santa Clara County, California, March 2020 #MMPMID32271724Zwald ML; Lin W; Sondermeyer Cooksey GL; Weiss C; Suarez A; Fischer M; Bonin BJ; Jain S; Langley GE; Park BJ; Moulia D; Benedict R; Nguyen N; Han GSMMWR Morb Mortal Wkly Rep 2020[Apr]; 69 (14): 419-421 PMID32271724show ga
On February 27, 2020, the Santa Clara County Public Health Department (SCCPHD) identified its first case of coronavirus disease 2019 (COVID-19) associated with probable community transmission (i.e., infection among persons without a known exposure by travel or close contact with a patient with confirmed COVID-19). At the time the investigation began, testing guidance recommended focusing on persons with clinical findings of lower respiratory illness and travel to an affected area or an epidemiologic link to a laboratory-confirmed COVID-19 case, or on persons hospitalized for severe respiratory disease and no alternative diagnosis (1). To rapidly understand the extent of COVID-19 in the community, SCCPHD, the California Department of Public Health (CDPH), and CDC began sentinel surveillance in Santa Clara County. During March 5-14, 2020, four urgent care centers in Santa Clara County participated as sentinel sites. For this investigation, county residents evaluated for respiratory symptoms (e.g., fever, cough, or shortness of breath) who had no known risk for COVID-19 were identified at participating urgent care centers. A convenience sample of specimens that tested negative for influenza virus was tested for SARS-CoV-2 RNA. Among 226 patients who met the inclusion criteria, 23% had positive test results for influenza. Among patients who had negative test results for influenza, 79 specimens were tested for SARS-CoV-2, and 11% had evidence of infection. This sentinel surveillance system helped confirm community transmission of SARS-CoV-2 in Santa Clara County. As a result of these data and an increasing number of cases with no known source of transmission, the county initiated a series of community mitigation strategies. Detection of community transmission is critical for informing response activities, including testing criteria, quarantine guidance, investigation protocols, and community mitigation measures (2). Sentinel surveillance in outpatient settings and emergency departments, implemented together with hospital-based surveillance, mortality surveillance, and serologic surveys, can provide a robust approach to monitor the epidemiology of COVID-19.|*Sentinel Surveillance[MESH]|Adolescent[MESH]|Adult[MESH]|Aged[MESH]|Aged, 80 and over[MESH]|COVID-19[MESH]|COVID-19 Testing[MESH]|California/epidemiology[MESH]|Child[MESH]|Child, Preschool[MESH]|Clinical Laboratory Techniques[MESH]|Community-Acquired Infections/*transmission[MESH]|Coronavirus Infections/diagnosis/*epidemiology/*transmission[MESH]|Female[MESH]|Humans[MESH]|Infant[MESH]|Male[MESH]|Middle Aged[MESH]|Pandemics[MESH]|Pneumonia, Viral/diagnosis/*epidemiology/*transmission[MESH]
  
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