OREANDA-NEWS. Vaccination can help with infection with the "delta" strain of coronavirus, said Sumya Swaminatan, chief researcher at the World Health Organization.

"It is certain that vaccines are preventing the rise in severe cases and deaths from the delta variant," she said during an online briefing.

In turn, WHO epidemiologist Maria van Kerkhove pointed out that even in countries with a high level of vaccination, "delta" circulates, rather, among the unvaccinated, and also where precautions are not taken.

At the same time, Swaminathan added that there is no need for additional doses of the vaccine.

Earlier, the head of the WHO, Tedros Adhanom Ghebreyesus, said that the spread of the delta strain is ahead of the measures taken by the world community. "In every country, the hotspots of hospitalization and death are where there is low vaccination rates and limited public health measures," he said.

The "Delta" strain of the SARS-CoV-2 coronavirus is one of the variants of the causative agent of COVID-19. It was first discovered and described in India. The variant is distinguished by a shortened incubation period and an increased load on the human body.

The World Health Organization has listed four SARS-CoV-2 mutations as "of concern": alpha (British), beta (South African), gamma (Brazilian) and delta (Indian) strains.