DOI 10.25732/PM.2020.115.3.001

 

A history of one discovery (Ixodes pavlovskyi Pomerantzev, 1946). Communication 2. Biological features

and epidemiological significance of Ixodes pavlovskyi Pomerantzev, 1946

 

H. V. Dubinina 1, A. Y. Nikitin 2

1 -  Zoological Institute RAS, St.-Petersburg; e-mail: anadev@yandex.ru

2 -  Irkutsk Anti-Plague Research Institute of Siberia and Far East, Irkutsk; e-mail: nikitin_irk@mail.ru

 

This communication continues the story about the description of Ixodes pavlovskyi Pomerantzev, 1946. This species was described by Boris I. Pomerantsev based on a single female collected in Primorski Krai in 1932. Further studies showed the importance of this discovery for, especially, the epidemiology of tick-borne infections in the Asian part of Russia. I. pavlovskyi is represented by two subspecies with a discontinuous distribution: the western Ixodes pavlovskyi occidentalis Filippova et Panova, 1998 and the eastern Ixodes pavlovskyi pavlovskyi Pom., 1946. Increasingly more new areas with high numbers of I. pavlovskyi are being registered in the last decades. In the eastern part of the distribution, I. p. pavlovskyi has become a background species on a large and densely populated of island Russky. In the western part, I. p. occidentalis reaches a high abundance in forest parks and suburbs of Kemerovo, Tomsk, Novosibirsk and Krasnoyarsk. In areas where it is relatively abundant, I. pavlovskyi replaces the taiga tick Ixodes persulcatus Schulze, 1930. Both these species are active vectors of the tick-borne encephalitis virus, borrelia and other hazardous human pathogens. In sympatric zones, individuals of closely related Ixodes species in the natural infection foci are mostly infected with different genospecies of borrelia. Ixodes pavlovskyi and I. persulcatus are shown to cross-breed in the nature and to form fertile hybrids. The differences in the level of epidemiological hazard between these two species require further study.

 

 

Keywords: B.I. Pomerantzev, Ixodes pavlovskyi, areas, biology, hybrids, epidemiological significance.

 

page 5-12

 

DOI 10.25732/PM.2020.115.3.002

 

Comparative analysis of biocenotic structure of tularemia agents in natural foci of steppe type in boundary territories of Rostov region

 

Dobrovolskiy O. P., biological sciences candidate 1,

Pichurina N. L. ,Medical science candidate 1,

Orechov I. V., biological sciences candidate 1,

Polonsky A. V.2, Goncharov A. Y. 2,

Batashev V. V., Medical science candidate  4,

Karpuschenko G. V., Medical science candidate 2,

Kovalev E. V. 3,

Kireev E. V., Medical science candidate 4,

Noskov A. K., Medical science candidate 1

 

1 - FGHI Rostov-on-Don Scientific Research Antiplague Institute of The Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, Russia, 344002, Rostov-on-Don, Maxim Gorkiy street, 117/40

2 - FGHI «Sanitary and Epidemiological Center in Rotov region», Russia, 344019, Rostov-on-Don, 7th line, 67

3 - Directorate of the The Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing in Rostov region, Russia, 344019, Rostov-on-Don, 18th line, 17

4 - FGHI «Northern Caucasian Antiplague station» The Russian Federal Service for Surveillance on Consumer Rights Protection and Human Wellbeing, Russia, 344022, Rostov-on-Don, Nakhchivanski line, 30\197

 

Species composition and abundance of small mammals –tularemia agents on the territories of boundary areas of Rostov region and Donetsk and lugansk regions – are analyzed in the article. How they are affected by abiocenotic, biocenotic and technogeneous factors is also studied.

 

 

Keywords: tularemia, natural foci, small mammals, species composition, abundance

 

page 13-19

 

DOI 10.25732/PM.2020.115.3.003

 

Hemorrhagic fever with renal syndrome in the Orenburg region

 

Bernshtein A. D. 1, Popova Yu. V. 1, Yakubovich I. S. 2, Konstantinova E. L. 3, Mamedova N. M. 3, Nazarenko S. V. 3, Khlyap L. A. 4, Dzagurova T. K. 1, Tkachenko E. A 1

 

1 -  Chumakov Federal Scientific Center for Research and Development of Immune-and-Biological Products, Russian Academy of Sciences, 108819, Moscow, Russia

2 - Government of Rospotrebnadzor in the Orenburg region, 460000, Orenburg, Russia

3 - FGUZ "Center of hygiene and epidemiology in Orenburg region", 460000, Orenburg, Russia

4 - A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, 119071, Moscow, Russia

 

The results of long-term monitoring of the Orenburg region territory, which is endemic for HFRS caused by Puumala hantavirus, are presented. It has been established that HFRS-Puumala foci, both in the steppe and forest-steppe landscapes, are confined to interzonal floodplain forests in the basins of the Ural, Samara, Sakmara and others rivers, which are favorable for the habitation of the main host of the Puumala virus – the European bank vole (Myodes glareolus). The incidence of HFRS and the foci area have been increased sharply over the past two decades and the average incidence rate per 10E5 approached the average values in the active foci of the forest zone. A close relationship between the incidence rate and the number of infected bank voles has been demonstrated. Locations with different levels of human infection risk were identified and mapped; identified settlements and their surroundings, where most of the local and visiting population are infected. It has been established that in some areas of the active focal area, the risk of infection can significantly increase due to a large influx of citizens.

 

Keywords: HFRS, Hantaviruses, natural foci, incidence, risk of infection, epidemic activity. 

 

page 20-29

 

DOI 10.25732/PM.2020.115.3.004

 

Indian meal moth (Plodia Interpunctella hübner, 1813) and human ecology

 

Gevorkyan I. S. Scientific Research Disifectology Institute. Moscow 117246, Russian Federation

 

Toxins produced by the larvae of the Indian meal moth (Plodia interpunctella Hübner, 1813) have a negative impact on human health. This requires an active struggle of the population with this insect at home. However, the recently discovered ability of larvae (caterpillars) of the Indian meal moth to reprocess polyethylene significantly increases its value as a biological method of utilization of polyethylene.

 

 

Keywords: Indian meal moth, Allergy, dermatitis, human health, human ecology, polyethylene utilization.

 

page 30-33

 

DOI 10.25732/PM.2020.115.3.005

 

About the history of insecticidal active substances. Part 3. Synthetic organic compounds, insect growth regulators

 

S. A. Roslavceva, professor, Scientific Research Disifectology Institute. Moscow 117246, Russian Federation

 

History of the use of substances and compounds as insecticides and larvicides for agricultural and medical disinsection. Part 3 of modern insect growth regulators: juvenoids (methoprene, hydroprene and pyriproxyfen), hormone molting – ecdysone and a chinin-synthesis inhibitors, wich used in Russia at the present timer for the purposes of medical disinsection.

 

 

Keywords: Insecticides, larvicides, insect growth regulators, juvenoids (methoprene, hydroprene and pyriproxyfen), ecdysone, chinin-synthesis inhibitors.

 

page 34-39

 

DOI 10.25732/PM.2020.115.3.006

 

Insecticidal varnish – long-lasting formulation

 

Kostina M. N., Doctor of Biological Sciences, Kostin F. N., Karaev A. L., cand.m.s.

Scientific Research Disinfectology Institute of the Federal Service on surveillance for con-sumer rights protection and human well-being

 

The target efficacy of a new insecticidal agent in the form of varnish has been studied, an acute effect has been established with a direct effect on insects and the duration of residual activity in contact with treated surfaces of various types.

 

 

Keywords: insecticidal varnish, insect control, preparative form.

 

page 40-43