Question

A In 2019 a global pandemic devastated the world. SAR * 5 - CoV - 2 a variation of the SARS virus, has been responsible for this devastation and has affected all of us one way or another. Knowing what you have learnt so far about genetics give your own reason to why some strains were more successful than others?

Answer 1

Viruses are constantly changing through mutations and these mutations usually give rise to a new variant of the virus. Some variants appear and then disappear, while other variants persist.

The reason for its persistence or success are mutations that lead to increased transmissibility.

The spike protein is used by the coronavirus to enter human cells, and its changes may help the virus evade antibodies.