Originally called the Indian variant or B.1.671.2, the Delta variant surged through India, causing a huge spike in infections and deaths earlier this year. — AP
All viruses mutate all the time, especially when they are replicating in a host body.
Therefore, the more people get infected by a certain virus, the more opportunities the virus has to mutate.
Already a subscriber? Log in.
Subscribe now for a chance to win your dream holiday!
![](https://cdn.thestar.com.my/Themes/img/sub_paywall_TSM.webp)
Cancel anytime. No ads. Auto-renewal. Unlimited access to the web and app. Personalised features. Members rewards.
Follow us on our official WhatsApp channel for breaking news alerts and key updates!