The World Health Organization is closely following 10 coronavirus variants “of interest” or “of concern” across the world, including two that were first detected in the U.S. and a triple-mutant variant that’s wreaking havoc in India, as potential global public health threats.
The organization has classified three strains as variants of concern: B.1.1.7, which was first detected in the U.K. and is the most prevalent strain currently circulating throughout the U.S.; B.1.351, first detected in South Africa, and the P.1 variant, first detected in Brazil.
One variant of interest is the B.1617 variant, or triple-mutant strain, first found in India, but the WHO’s technical lead for Covid-19, Maria Van Kerkhove, said more studies are needed to completely understand its significance.
One variant of interest is the B.1617 variant, or triple-mutant strain, first found in India, but the WHO’s technical lead for Covid-19, Maria Van Kerkhove, said more studies are needed to completely understand its significance.
“There actually are a number of virus variants that are being detected around the world, all of which we need to properly assess,” Van Kerkhove said. Scientists look at how much each variant is circulating in local areas, whether the mutations change the severity or transmission of the disease and other factors before categorizing them as a new public health threat.
“The information is coming in fast and furious,” she said. “There are new variants every day that are being identified and being reported, not all of which are important.”
Other variants classified as variants of interest include B.1525, which was first detected in the U.K. and Nigeria; B.1427/B.1429, first detected in the U.S.; P.2, first detected in Brazil; P.3, first detected in Japan and the Philippines; S477N, first detected in the U.S., and B.1.616, first detected in France.
Van Kerkhove said the classifications are determined, at least in part, by sequencing capacities, which vary by country. “It’s really patchy so far,” she said.
She said the agency is also looking to local epidemiologists as an extension of the agency’s “eyes and ears” to better understand the situation on the ground and identify other potentially dangerous variants.
Reference: CNBC
Thai
Eng