The World Health Organisation has a new naming system, using the Greek alphabet, for coronavirus variants of concern. The Delta variant was previously known as the “Indian variant”, as it was first found in India. It's one of three sub-lineages of the Indian variant, and is also known as B.1.617.

"UK variant" B.1.1.7 and "South African variant" B.1.351, the "Indian variant" B.1.617 is another variation of the virus that causes COVID-19. the variant was first identified in Maharashtra, India, in October,and spread to more than 40 other countries, including Australia.

CORONO -DELTA VS Covaxin

A study by researchers from the National Institute of Virology in Pune, the Indian Council of Medical Research and vaccine manufacturer Bharat Biotech has found that Covaxin is effective against the Beta and Delta variants of Covid-19.

CORONO -DELTA VS Covishield

A preliminary study conducted by the All India Institute of Medical Science (AIIMS) Delhi claimed that the presence of COVID-19 Delta variant (B1.617.2) is predominantly found even after getting a single dose or both doses of COVID-19 vaccine.

The study included 63 people who got breakthrough infections; of which 36 patients received two doses, while 27 had received one dose of vaccine.

236 million doses of the COVID vaccine have been given in India. More than 45 million people have received 2 doses of the vaccine and are considered fully vaccinated.