Scientists race to study variants in India as cases explode
NEW DELHI (AP) — A potentially worrisome variant of the coronavirus detected in India may spread more easily. But the country is behind in doing the kind of testing needed to track it and understand it better.
On Monday, the World Health Organization designated the new version of the virus a “variant of concern" based on preliminary research, alongside those that were first detected in Britain, South Africa and Brazil but have spread to other countries.
“We need much more information about this virus variant," said Maria Van Kerkhove, WHO's technical lead for COVID-19. "We need more sequencing, targeted sequencing to be done and to be shared in India and elsewhere so that we know how much of this virus is circulating.”
Viruses mutate constantly, and the surge in infections here has resulted in more opportunities for new versions to emerge.
But India was slow to start the genetic monitoring needed to see if those changes were happening and if they were making the coronavirus more infectious or deadly.
Such variants also need to be monitored to see if mutations help the virus escape the immune system, potentially leading to reinfections or making vaccines less effective. For now, the WHO stressed that COVID-19 vaccines are effective at preventing disease and death in people infected with the variant.
Indian scientists say their work has been hindered by bureaucratic obstacles and the government’s reluctance to share vital data. India is sequencing around 1% of its total cases, and not all of the results are uploaded to the global database of coronavirus genomes.
When there isn't enough sequencing, there will be blind spots and more worrisome mutations could go undetected until they're widespread, said Alina Chan, a postdoctoral researcher at Broad Institute of MIT and...