BA.2 sub-lineage. The rest are BA.1," said Maria Van Kerkhove, the WHO's technical lead on Covid-19. “So, we are seeing an increase in the proportion of detection of BA.2.
However, we are seeing a lower number of sequences being reported to platforms like GISAID. But it still remains absolutely critical that we have strong surveillance and intelligent sequencing worldwide," she added.
Asserting that BA.2 is highly transmissible, she also pointed out that some countries are starting to see an uptick in cases.
This was seen in the recent weekly report by the WHO as well, which stated that the number of new coronavirus cases globally increased by 7% in the last week, driven largely by rising infections in the Western Pacific.