CoV can induce respiratory, gastrointestinal and neurological dysfunction in their hosts and predominately respiratory infections in human.
A total of seven species of coronavirus are found to be pathogenic to humans:
(1) HKU1, (2) OC43, (3) NL63 and (4) 229E: Mild upper respiratory tract infections
(5) SARS-CoV, (6) MERS-CoV and (7) SARS-2-CoV: Zoonotic and life threatening 1.1b SARS-CoV-2 vs SARS-CoV vs MERS-CoV
SARS was first known to human in 2002–2003, starting in Guangdong Province of China, infecting 8,098 people worldwide and with a CFR of 9.6%. MERS-CoV, on the other hand, first appeared in 2012 in Saudi Arabia, infected almost 2,500 people, mainly in the Middle East and Korea and with a high CFR of 34.4%. Recently, a new member to the coronavirus family, SARS-CoV-2, has led to a large-scale pandemic with an estimated CFR of 3.4%.
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1.2 The Coronavirus Explained & What You Should Do
1.3 Viruses vs. Bacteria | What’s The Difference? 1.4 Swine Flu Pandemic 1.5 Coronavirus could attack immune system like HIV by targeting protective cells 1.6 When and How Will COVID-19 End? 1.7 What Would A Second Wave Look Like?