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Mar 17, 2021 · A Timeline of the Coronavirus Pandemic. The outbreak of the virus has sickened more than 80 million people. At least 1.7 million people have died. Here’s how the year unfolded. A group of ...
Feb 19, 2021 · What is an Epidemic? The Centers for Disease Control and Prevention (CDC) describes an epidemic as an unexpected increase in the number of disease cases in a specific geographical area. Yellow fever, smallpox, measles, and polio are prime examples of epidemics.
Mar 10, 2022 · Epidemic. An increase — often sudden — in the number of cases of a disease above what is normally expected in that population in a specific area. Pandemic. An epidemic that has spread over several countries or continents and affects many people. Over the past two years, COVID-19 has been classified as a pandemic due to its widespread effects.
Coronavirus. By country. Data explorer. Deaths. Cases. Tests. Hospitalizations. Vaccinations. Mortality risk. Excess mortality. Policy responses. Explore all metrics – including cases, deaths, testing, and vaccinations – in one place. Get an overview of the pandemic for any country on a single page.
The COVID-19 pandemic, also known as the coronavirus pandemic, is a global pandemic of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).
An epidemic (from Greek ἐπί epi "upon or above" and δῆμος demos "people") is the rapid spread of disease to a large number of hosts in a given population within a short period of time. For example, in meningococcal infections , an attack rate in excess of 15 cases per 100,000 people for two consecutive weeks is considered an epidemic.
Jan 27, 2021 · EDITORIAL. 27 January 2021. How epidemiology has shaped the COVID pandemic. Nature ’s third progress report, coming at the end of the pandemic’s first year, highlights key findings from...
