Delta, the Coronavirus variant first found in India, turned out to be 80% of some 50 genomes sequenced in Bangladesh since May 16 by IEDCR. There is also evidence of community transmission of the variant, according to research jointly carried out by IEDCR and IDSHI.
The study also identified one "unknown variant" and found 8 of the samples (16%) to be infected with the South African variant.
IEDCR and IDSHI collected and analysed 50 samples from across the country, including border districts and the capital since May 16.
The research also found 40 out of the total 50 cases as Delta variant, known as Indian variant, in samples collected from Chapainawabganj, Gopalganj, Khulna, Dhaka, Dinajpur, Gaibandha, Bagerhat, Jhenaidah and Pirojpur.
Also read: Indian Variant: The New Concern
Also, among the 40 patients, eight were tested positive after returning from India while 18 others came in contact with overseas returnees although they did not travel abroad.
Meanwhile, among the samples collected, 14 infected people neither went abroad nor came in contact with people with travel history. So, it is clear that the Indian variant is being transmitted at the community level inside the country, the research said.
On May 8, the Indian variant was detected in Bangladesh for the first time. All of the infected people returned from the neighbouring country.
The "highly contagious" Indian Delta variant was first detected in October last year. The World Health Organization labelled it a "variant of concern."
Also read: 8 Indian variant cases identified in Jashore