The level of collective immunity to the coronavirus in Russia, which is calculated based on the number of vaccinated and over-vaccinated people, fell to 61.9% from 64.1% in a week, the operational headquarters for fighting the epidemic said on Friday.

“This indicator is decreasing due to the loss of immunity by the primary vaccinated and over-vaccinated Russians who were over six months ago,” the statement said.

First-component vaccination was administered 85.9 million times, compared with nearly 85 million times a week earlier.

Full-cycle vaccination, which takes into account both the course of vaccination with two-component or single-component vaccine and revaccination, was carried out 81.5 million times against 80.5 million times a week earlier, the report said.

The number of new infections in the country began to gradually rise after the New Year vacations amid the spread of a new strain of Omicron in Russia.

Since the start of the pandemic, Russia has recorded more than 13 million coronavirus infections and more than 710,000 related deaths.