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This article documents the chronology and epidemiology of SARS-CoV-2 in 2019, the virus that causes coronavirus disease 2019 and is responsible for the COVID-19 pandemic. The first human cases of COVID-19 known to have been identified were in Wuhan, Hubei, China, in December 2019. It marked the beginning of the 2019–2020 COVID-19 outbreak in ...
The article contains the number of cases of coronavirus disease 2019 reported by each country, territory, and subnational area to the World Health Organization (WHO) and published in WHO reports, tables, and spreadsheets.
Coronavirus diseases are caused by viruses in the coronavirus subfamily, a group of related RNA viruses that cause diseases in mammals and birds. In humans and birds, the group of viruses cause respiratory tract infections that can range from mild to lethal.
Infectious bronchitis virus (IBV), a type of coronavirus, causes avian infectious bronchitis. [131] The virus is of concern to the poultry industry because of the high mortality from infection, its rapid spread, and its effect on production. [127] The virus affects both meat production and egg production and causes substantial economic loss. [132]
[27] [28] In January 2020, the World Health Organization (WHO) recommended "2019 novel coronavirus" (2019-nCoV) [5] [29] as the provisional name for the virus. This was in accordance with WHO's 2015 guidance [ 30 ] against using geographical locations, animal species, or groups of people in disease and virus names.
Experts have said the virus is unlikely to spread in the same way Covid-19 did because HMPV is not a new virus among the global population. Key Points Cases of HMPV rise across the world
A PNAS report in September 2020 confirmed that the virus is much more dangerous for the elderly than the young, noting that about 70% of all U.S. COVID-19 deaths had occurred to those over the age of 70. [94] As of early August 2020, among the 45 countries that had over 50,000 cases, the U.S. had the eighth highest number of deaths per-capita.
Although cases are increasing at a rapid rate, health officials say that the outbreak is not out of the ordinary and that the risk of another COVID-19 pandemic remains low.