NATIONAL WEEKLY RSV BULLETIN OF THE RUSSIAN FEDERATION

week 17 of 2026 (20.04.26 - 26.04.26)

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 6263 patients with ARVI were tested by PCR for RSV, of which 263 (4.2%) were positive. This included 153 (13.4%) cases aged 0-2 years, 46 (5.2%) cases aged 3-6 years, 16 (1.5%) cases aged 7-14 years and 48 (1.5%) cases aged 15 years and older.

PCR testing data for RSV from week 40 of 2025 to week 17 of 2026 showed a total 237977 patients were investigated, including 38530 children aged 0-2 years, 29156 children aged 3-6 years, 45293 children aged 7-14 years and 124998 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 17 of 2026 was 6.7%. 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 17 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.