Yolanda Van Zyl – Clinical Coordinator Infection Control, Paarl Hospital
Reviewed by: Lesley Devenish -Infection Prevention and Control Project Co-ordinator,
Department of Clinical Microbiology and Infectious Diseases NHLS
Answer to Question 1Isolation is a when a sick individual with a confirmed contagious disease (e.g. COVID19) is separated from others without that disease. Quarantine is when a person who does not have symptoms for a contagious disease (e.g. COVID-19) has been in close contact with someone who has it and is separated from others who are not exposed; or who is awaiting test results.
Answer to Question 2
Answer to Question 3
Answer to Question 4SARS-CoV-2 is a novel coronavirus, having likely thought to originate from wild pangolins and bats from ongoing research. It has recently been discovered to cause disease in humans. Person to person transmission has been rapid, causing large community outbreaks across the globe. The virus infects and colonises the human nasopharynx and upper respiratory tract, later affecting the lower respiratory tract leading to pneumonia and respiratory failure which can result in death (variable case fatality rates reported 1-5%). It is an enveloped virus which makes it fragile and vulnerable to heat, chemicals and ultraviolet sunlight.
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