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The case fatality ratio for COVID-19 has been much lower than SARS of 2003, [6] [7] but the transmission has been significantly greater, with a significant total death toll. [6] [8] Model-based simulations for Egypt indicate that the 95% confidence interval for the time-varying reproduction number R t has fluctuated around 1.0 since August 2020 ...
US Ambassador to Indonesia Sung Kim accompanied by local officials at the Presidential Palace wearing face masks amid the COVID-19 pandemic. During the COVID-19 pandemic, face masks or coverings, including N95, FFP2, surgical, and cloth masks, have been employed as public and personal health control measures against the spread of SARS-CoV-2, the virus that causes COVID-19.
The timeline of the COVID-19 pandemic lists the articles containing the chronology and epidemiology of SARS-CoV-2, [1] the virus that causes the coronavirus disease 2019 and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 occurred in Wuhan, People's Republic of China, on or about 17 November 2019. [2]
COVID-19 is the deadliest pandemic in US history; [360] it was the third-leading cause of death in the US in 2020, behind heart disease and cancer. [361] From 2019 to 2020, US life expectancy dropped by 3 years for Hispanic Americans, 2.9 years for African Americans, and 1.2 years for white Americans. [362]
In 2013, a study revealed that the virus was 100% genetically identical to the coronavirus of the Egyptian tomb bat (Taphozous perforatus coronavirus HKU4) from Bisha, Saudi Arabia, indicating its original source. [128] In 2014, it was established that the virus was transmitted to humans by dromedary camels, which act as the intermediate hosts.
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Egyptian virologist Dr. Ali Mohamed Zaki isolated and identified a previously unknown coronavirus from the lungs of a 60-year-old Saudi Arabian man with pneumonia and acute kidney injury. [10] After routine diagnostics failed to identify the causative agent, Zaki contacted Ron Fouchier, a leading virologist at the Erasmus Medical Center (EMC ...
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