Agency. The World Health Organization (WHO) has classified the Covid-19 strains of India, the United Kingdom, South Africa and Brazil as complex viruses.

The World Health Organization (WHO) on Monday classified the type of coronavirus found in India as a global concern. According to the WHO, preliminary studies have shown that the B1.617 infection seen in India spreads more easily than other types, adding that more studies are needed in this regard.

The WHO's technical chief said on Monday that the effectiveness of the Indian vaccines now available was likely to be low. He said the lack of effectiveness of this type of vaccine was a matter of concern.

The WHO says the virus, which is found in India, has spread to more than 30 countries. In addition, the United Kingdom, the United Kingdom, South Africa and Brazil have similarly classified the Covid-19 species by the WHO.