Gastrointestinal Cancer Stage at Diagnosis Before and During the COVID-19 Pandemic in Japan
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Open Access
- 21 September 2021
- journal article
- research article
- Published by American Medical Association (AMA) in JAMA Network Open
- Vol. 4 (9) , e2126334
Abstract
COVID-19 is caused by SARS-CoV-2. The first case was identified in Wuhan, China, during December 2019, and the disease has subsequently spread worldwide, leading to an ongoing pandemic. The symptoms of COVID-19 are variable but often include fever, cough, difficulty breathing, and lost senses of smell and taste. At least one-third of people infected with SARS-CoV-2 remain asymptomatic but are able to spread the virus,1,2 which primarily occurs via close personal contact.3,4 Therefore, many governments have implemented lockdowns or declared states of emergency to prevent the spread of SARS-CoV-2.5Keywords
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