Popova, who heads state consumer protection agency Rospotrebnadzor, said that Russia's daily infections rate was "one of the lowest in the world," even at its peak.
The official added that 45% of new COVID-19 cases in Russia are asymptomatic, compared to 15% in March. This development means that only 20% of those recently infected need urgent medical care, down from 60% in April, Popova said.
180 out of 100,000 Russians are being tested for the coronavirus every day. Large-scale immunity studies are scheduled to begin at the end of June, she added.
Former health minister Veronika Skvortsova previously announced a flattening of Russia's COVID-19 curve on May 1. The country posted its highest one-day coronavirus tally – 11,656 cases – on Monday, May 11.
Russia has not reported over 10,000 new infections in the past week. On May 18, the country confirmed less than 9,000 infections for the first time since the beginning of the month. The statistics point to a slowdown in the spread of the disease, as the number of new cases appears to have leveled off.
Recoveries in Russia exceeded the number of people testing positive for the first time on May 20, as authorities reported 9,262 recoveries versus 8,926 fresh infections.
The country counts 326,448 total infections as of May 22, and is in second place worldwide in terms of confirmed COVID-19 cases – the US is in first with over 1.57 million. 3,294 COVID-19 patients have died in Russia since the start of the pandemic, while 99,825 have recovered.