by Re-infection due to a new variant is one of the greatest concerns. It increases the risk because the immune system might not recognise the mutant variant, finding it hard to fight the virus. Moreover, many of the new variants are more infectious than the initial COVID-19 virus, which also increases the possibility of re-infection. The same goes for omicron. Though the new variant does not cause severe symptoms, it is highly transmissible. Besides, there is also a threat of Delmicron, the combination of Delta and Omicron, which has caused havoc in the European nations.
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