Detecting and predicting risks relayed to spread of natural foci infections on flood-affected territories in Irkutsk region

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DOI: 
10.21668/health.risk/2021.2.09.eng
Authors: 

N.V. Breneva1, S.V. Balakhonov1, A.Ya. Nikitin1, I.V. Meltsov2, M.B. Sharakshanov1, V.V. Kuzmenkov1, Е.А. Sidorova1, А.V. Sevostyanova1, Е.S. Кulikalova1, А.V. Mazepa1, V.Т. Klimov1, М.V. Chesnokova1, N.V. Ustinova3, А.F. Timoshenko3, S.А. Borisov1, Е.А. Basov1, N.L. Barannikova1, М.I. Tolmachyova1, S.Е. Ryabtsovskaya1, Е.I. Andaev1

Organization: 

1Irkutsk Antiplague Research Institute of Siberia and Far East awarded by the Labour Red Banner, 78 Trilissera Str., Irkutsk, 664047, Russian Federation
2Irkutsk State Agrarian University named after A.A. Ezhevsky, 1/1, Molodezhny settlement, Irkutsk district, Irkutsk region, 664038, Russian Federation
3Center for Hygiene and Epidemiology in Irkutsk Region, 51 Trilissera Str., Irkutsk, 664047, Russian Federation

Abstract: 

In summer 2019 in western Irkutsk region abundant and long rainfall caused a catastrophic flood that became a federal emergency.
It resulted in a threat that natural infection foci would be activated in that emergency zone; given that, the Irkutsk Anti-plague Institute, together with Rospotrebnadzor territorial offices and regional veterinary authorities, conducted an epizootologic-epidemiologic study on affected territories in order to detect and predict possible epidemiologic risks.
Totally, the study covered 30 socially significant objects and natural biotopes in three mu-nicipal districts in the region. We tested blood serum of people (244 samples), farm and home ani-mals (253), and organs taken from caught small mammals aiming at determining natural foci infec-tions in them with bacteriologic, serologic, and PCR procedures; overall. 4,370 examinations were performed.
Share of immune people amounted to 13.1% regarding tularemia; 17.5%, tick-borne en-cephalitis; yersiniosis, 10.8%; leptospirosis, 3.1%; tick-borne borreliosis, 7.1%. Antibodies to pathogenic leptospira were detected in 36.0–81.3% farm animals and it can indicate there is a latent epizootic process. In July 2019 there was low population of synanthropic rodents in socially significant objects on affected territories and small mammals population also decreased in natural foci with high contagion rate for tularemia agent (down to 17.9%). In September 2019 rats were detected to inhabit food-related objects and small mammals migrated actively in natural stations, contagion rate with tularemia agent going down among them whereas there was a growth in conta-gion rate with leptospira (up to 40.0%). We also revealed new natural tularemia and leptospirosis foci.
Activity in natural infections foci didn’t exceed long-term average level just after the flood; still, there are persisting risks on affected territories in Irkutsk region that an epidemiologic situation might get worse there. The paper contains recommendations on further epizootologic-epidemiologic monitoring and organizing prevention activities such as control over sanitary situation at socially significant objects, local deratization, and sanitation in natural foci of animal leptospirosis.

Keywords: 
emergency, flood, epidemiologic risks, natural foci infections, zoonosis, leptospirosis, tularemia, Irkutsk region
Breneva N.V., Balakhonov S.V., Nikitin A.Ya., Meltsov I.V., Sharakshanov M.B., Kuzmenkov V.V. , Sidorova Е.А., Sevostyanova А.V., Кulikalova Е.S., Mazepa А.V., Klimov V.Т., Chesnokova М.V., Ustinova N.V., Timoshenko А.F., Borisov S.А., Basov Е.А., Barannikova N.L., Tolmachyova М.I., Ryabtsovskaya S.Е., Andaev Е.I. Detecting and predicting risks relayed to spread of natural foci infections on flood-affected territories in Irkutsk region. Health Risk Analysis, 2021, no. 2, pp. 94–104. DOI: 10.21668/health.risk/2021.2.09.eng
References: 
  1. Vorob'ev Yu.L., Akimov V.A., Sokolov Yu.I. Katastroficheskie na-vodneniya nachala XXI veka: uroki i vyvody [Catastrophic floods in early 21st century: lessons and conclusions]. Moscow, OOO «DEKS-PRESS» Publ., 2003, 352 p. (in Russian).
  2. Obespechenie sanitarno-epidemiologicheskogo blagopoluchiya naseleniya pri likvidatsii posledstvii navodneniya na Dal'nem Vostoke [Providing sanitary-epidemiologic safety of population when eliminating consequences of the flood in the Far East]. In: G.G. Onishchenko, S.V. Balakhonova eds. Novosibirsk, Nauka-Tsentr Publ., 2014, 648 p. (in Russian).
  3. Noskov A.K., Balakhonov S.V., Mikhailov L.M., Vishnyakov V.A., Kulikalova E.S., Mazepa A.V., Breneva N.V., Sidorova E.A. [et al.]. Epidemiologic situation on zoonotic infectious diseases on the territories of Siberia and far east suffered from natural disasters in 2013–2014. Dal'nevostochnyi zhurnal infektsionnoi patologii, 2016, no. 30, pp. 6–10 (in Russian).
  4. Kuznetsova Z. Pavodok v Irkutskoi oblasti. Khronika sobytii [Flood in Irkutsk region: chronicle of events]. Novosti Irkutska i Priangar'ya. Irkutskii portal, 2019. Available at: https://ircity.ru/articles/38418/ (25.11.2020) (in Russian).
  5. Svodka ChSGUMChS Rossii po Irkutskoi oblasti na 6-00 28.06.2019 g. [Report on emergences by the Irkutsk Regional Office of EMERCOM of Russia of June 28, 2019, 6.00 a.m.]. Operativnaya informatsiya GU MChS Rossii po Irkutskoi oblasti, 2019. Available at: https://38.mchs.gov.ru/deyatelnost/press-centr/operativnaya-informaciya/... (25.11.2020) (in Russian).
  6. Novosti Irkutska: ekonomika, sport, meditsina, kul'tura [Irkutsk news: economy, sport, public healthcare, and culture]. Tvoi Irkutsk, 2019. Available at: http://www.irk.ru/news/ (25.11.2020) (in Russian).
  7. Pavodok v Irkutskoi oblasti [Flood in Irkutsk region]. TASS, 2019. Available at: https://tass.ru/pavodok-v-irkutskoy-oblasti/ (25.11.2020) (in Russian).
  8. Nikitin A.Ya., Noskov A.K., Balakhonov S.V. Taktika organizatsii i provedeniya epizootologo-epidemiologicheskogo monitoringa v tselyakh obespecheniya biobezopasnosti massovykh meropriyatii i v usloviyakh chrezvychainykh situatsii [Tactics of organizing and accomplishing epizootologic-epidemiologic monitoring aimed at providing biological safety during mass events and in case of emergency]. Zhurnal infektologii, 2015, vol. 7, no. S3, 64 p. (in Russian).
  9. Gromov I.M., Erbaeva M.A. Mlekopitayushchie fauny Rossii i so-predel'nykh territorii. Zaitseobraznye i gryzuny [Mammals in Russia and adjoining territories. Lagomorphs and rodents]. Sankt-Peterburg, ZIN RAN Publ., 1995, 540 p. (in Russian).
  10. Pavlinov I.Ya., Rossolimo O.L. Sistematika mlekopitayushchikh SSSR: issledovaniya po faune Sovetskogo Soyuza [Taxonomy of mammals in the USSR: studies on fauna in the Soviet Union]. In: V.E. Sokolova ed., 1987, 285 p. (in Russian).
  11. Arai S., Bennett S.N., Sumibcay L., Cook J.A., Song J.W., Hope A. Short Report: Phylogenetically Distinct Hantaviruses in the Masked Shrew (Sorex cinereous) and Dusky Shrew (Sorex monticolus) in the United States. Am. J. Trop. Med. Hyg, 2008, vol. 78, no. 2, pp. 348–351. DOI: 10.4269/ajtmh.2008.78.348
  12. Hall T.A. Bio Edit: auser-friendly biological sequence alignment editor and analysis program for Windows 95/98/NT. Nucleic Acids Symp, 1999, no. 41, pp. 95–98.
  13. Zaks L. Statisticheskoe otsenivanie [Statistic estimation]. In: Yu.P. Adler, V. Gorskii eds. Moscow, Statistika Publ., 1976, 598 p. (in Russian).
  14. Kiseleva E.Yu., Breneva N.V., Sharakshanov M.B., Noskov A.K., Borisov S.A., Chesnokova M.V., Balandina T.P., Nursayanova L.P. [et al.]. Actual problems of epidemiological surveillance for leptospirosis in Irkutsk region. Epidemiologiya i vaktsinoprofilaktika, 2014, vol. 77, no. 4, pp. 51–56 (in Russian).
  15. Korenberg E.I., Pomelova V.G., Osin N.S. Prirodnoochagovye infektsii, peredayushchiesya iksodovymi kleshchami [Natural foci infections borne by ticks]. In: A.L. Gintsburga, V.N. Zlobina eds. Moscow, Nauka Publ., 2013, 465 p. (in Russian).
  16. Ablov A.M., Anganova E.V., Batomunkuev A.S., Trofimov I.G., Ba-ryshnikov P.I., Meltsov I.V. Brucellosis farm animals in the Irkutsk region. Vestnik APK Stavropol'ya, 2015, no. 4 (20), pp. 81–84 (in Russian).
  17. Epizooticheskaya situatsiya v RF [Epizootic situation in the RF]. Ofitsial'nyi sait Rossel'khoznadzora. Available at: http://www.fsvps.ru/fsvps/iac/rf/reports.html/ (25.11.2020) (in Russian).
  18. Tkachenko E.A., Bernshtein A.D., Dzagurova T.K., Morozov V.G., Slonova R.A., Ivanov L.I., Trankvilevskii D.V., Kryuger D. Actual problems of hemorrhagic fever with renal syndrome. Zhurnal mikrobiologii, epidemiologii i immunobiologii, 2013, no. 1, pp. 51–58 (in Russian).
  19. Slonova R.A., Tkachenko E.A., Ivanis V.A., Kompanets G.G., Dzagurova T.K. Gemorragicheskaya likhoradka s pochechnym sindromom [Hemorrhagic fever with renal syndrome]. Vladivostok, OAO «Primpoligrafkombinat» Publ., 2006, 246 p. (in Russian).
  20. O kontrole za epidemiologicheskoi situatsiei v Irkutskoi oblasti v svyazi s pavodkami [On control over epidemiologic situation in Irkutsk region due to flood]. Sait Federal'noi sluzhby po nadzoru v sfere zashchity prav potrebitelei i blagopoluchiya cheloveka, 2019. Available at: https://www.rospotrebnadzor.ru (25.11.2020) (in Russian).
Received: 
25.03.2021
Accepted: 
07.06.2021
Published: 
30.06.2021

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