Since the beginning of 2020, the whole world has been facing major challenges due to the spread of the COVID-19 coronavirus pandemic. This refers to a serious disease affecting the human respiratory system, potentially leading to physical complications up to a fatal outcome.
It is worth noting that coronaviruses constitute a large group of viruses with proven pathogenic properties in relation to humans or animals. A number of them may cause respiratory infections in humans ranging from common colds to more serious conditions . As for COVID-19, the disease is caused by the last of the recently identified coronaviruses, which previously had been unknown. It transmits from human to human by airborne droplets through coughing or sneezing, or by contact through touch.
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