The COVID-19 variant known as B.1.617 has spread to a dozen countries ever since it was discovered in India last year. Researchers have identified three subtypes each with a slightly different genetic make-up of the mutant.

Researchers have identified three subtypes of COVID-19 mutant

The Wuhan virus is no longer the same. It has mutated and become more powerful. WION's Palki Sharma tells you about the 4 variants that are powering the second wave globally.

Gravitas: The Wuhan virus mutations you need to know about

Leading health experts from around the world have warned that mutations of the Coronavirus could render current vaccines ineffective within a year. A survey revealed that the planet has less than a year before new vaccines are needed to fight COVID-19 and its mutations.

Scientists: Will need new vaccine to fight COVID-19 in a year