PMC:7050133 / 9042-9925 JSONTXT

{"target":"https://pubannotation.org/docs/sourcedb/PMC/sourceid/7050133","sourcedb":"PMC","sourceid":"7050133","source_url":"https://www.ncbi.nlm.nih.gov/pmc/7050133","text":"In theory, the true number of persons with COVID-19 infection can never be known no matter how we try to detect it. In practice, of all the infected cases in a day, there are some who have passed the latent period when the virus reaches a detectable level. These patients can then be detected if: a) detection services are available to them, b) all the potentially infected are accessible to the services and are tested, and c) the testing method is sensitive, valid and reliable. When reading the daily data, we must be aware that the detected and diagnosed cases in any day can be great, equal, or below the number of detectable. For example, a detectable person in day one can be postponed to next day when testing services become available. This will result in reduction in a detection rate \u003c 100% in the day before the testing day and a detection rate \u003e 100% in the testing 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