
Coronaviruses: Classic vs. Novel - Public Health Concern
Coronaviruses are a family of viruses infecting humans and animals, categorized into Classic and Novel groups. The Classic viruses circulate among humans, causing mild respiratory infections, while Novel viruses, like MERS-CoV and SARS-CoV, originate in animals and can be severe in humans. The emergence of the 2019 Novel Coronavirus (COVID-19) in China has raised global concern due to its rapid spread and impact on public health. The World Health Organization declared it a Public Health Event of International Concern, emphasizing the need for international collaboration to control the disease. Stay informed and take necessary precautions to protect yourself and others.
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Presentation Transcript
Republic of Lebanon Ministry of Public Health Epidemiological Surveillance Program Coronaviruses Feb 2020
Outline Coronavirus Classical Viruses Novel Viruses Public Health Event of International Concern
Coronavirus Family of viruses infecting humans and animals In Humans: infection of the respiratory tract In Humans, 2 groups: Classic viruses Novel viruses
Classic Coronaviruses Group of Classic Human Coronaviruses Circulating among humans Reservoir: Humans Acute respiratory infection, usually mild, mainly in winter and spring Examples: 229E, NL63, OC43 and HKU1
Novel / Invasive Coronaviruses Group of Novel/Invasive Human Coronaviruses Circulating in animals Reservoirs: animals Rarely affect humans Examples: Middle East Respiratory Syndrome Coronavirus: MER-CoV Severe Acute Respiratory Syndrome Coronavirus: SARS-CoV
Novel / Invasive Coronaviruses Virus Human cases Deaths Case fatality (%) Number of affected countries Period MERS- CoV 2494 858 34% 27 (up to Nov 2019) Since 2012 (up to Nov 2019) SARS- CoV 8096 774 10% 26 2002- 2004
2019-Novel Coronavirus COVID-19 2019 Novel Coronavirus: novel invasive virus First human cases In China December 2019 Cluster of 41 cases Link with animal market in Wuhan City in Hubei Province
2019-Novel Coronavirus COVID-19 Since, number of human cases is increasing In China: in Hubei province and other provinces Outside China: Travel related cases Or among contact of cases
Public Health Event of International Concern The Public Health Event of International Concern is declared by the Director General of the World Health Organization The declaration means: Presence of expanding cross border disease Need for international coordination and collaboration to contain the disease
Public Health Event of International Concern 2020 30 / . 2019