NATIONAL WEEKLY RSV BULLETIN OF THE RUSSIAN FEDERATION

week 20 of 2026 (11.05.26 - 17.05.26)

Non-sentinel surveillance data were received from 37 cities (Arkhangelsk, Astrakhan, Belgorod, Birobidzhan, Volgograd, Vologda, Voronezh, Yekaterinburg, Irkutsk, Kazan, Kaliningrad, Kemerovo, Kirov, Krasnodar, Krasnoyarsk, Kursk, Lipetsk, Moscow, Murmansk, Novosibirsk, Norilsk, Omsk, Orenburg, Perm, Petrozavodsk, Petropavlovsk, St. Petersburg, Simferopol, Smolensk, Syktyvkar, Tula, Ulan-Ude, Ulyanovsk, Khabarovsk, Cheboksary, Yuzhno-Sakhalinsk, Yakutsk) located in 7 Federal Districts. A total of 5066 patients with ARVI were tested by PCR for RSV, of which 128 (2.5%) were positive. This included 70 (7.6%) cases aged 0-2 years, 22 (3.5%) cases aged 3-6 years, 12 (1.3%) cases aged 7-14 years and 24 (0.9%) cases aged 15 years and older.

PCR testing data for RSV from week 40 of 2025 to week 20 of 2026 showed a total 253936 patients were investigated, including 41466 children aged 0-2 years, 31138 children aged 3-6 years, 48049 children aged 7-14 years and 133283 patients aged 15 years or older. RSV as a cause of acute respiratory infection was more commonly detected among children aged 0-2 years.

The cumulative detection rate among children aged 0-2 years from week 40 of 2025 to week 20 of 2026 was 6.9%. Among children aged 3-6 years, the detection rate was 3.2%, among children aged 7-14 years - 1.1%. The RSV detection rate among patients aged 15 years or older was 0.9%.

In the period from week 40 of 2025 to week 20 of 2026, RSV was detected in all weeks. The average RSV detection rate was approximately 2.2%. The highest weekly detection rate of approximately 7.1% was reported on week 12.2026.