Delta plus variant of Covid 19 an emerging public health threat

Delta plus an emerging form of delta variant of the novel corona virus which allows it to escape antibodies in recently approved treatment regimes.

Delta plus variant formally known as AY.1 or B.1.617.2.1.It is a variant of Delta( B.1.617.2) which was first identified in India.It has an additional mutation called K417N which has previously been identified in the Beta variant ( first found in South Africa) and the gamma variant ( first identified in Brazil)These variants are characterised as being highly infectious and may reduce the potency of vaccines.

The delta variant is now regarded as the most prevalent one in India, comprising 31%of the 21000 community samples processed until late may.

The delta variant has a cavalcade of mutations that have allowed it to dominate in several countries including India,another form may pose new challenges to the management of pandemic in India.